Home / 1,020,819,401.80-1,531,229,102.70-503,497,673.80

Finding the Fourth Proportional to 1,020,819,401.80, 1,531,229,102.70 and 503,497,673.80

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Solution

The fourth proportional to 1,020,819,401.80, 1,531,229,102.70 and 503,497,673.80 is: 755,246,510.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020,819,401.80 : 1,531,229,102.70 = 503,497,673.80 : x
  2. Step 2: Convert to fraction form
    1,020,819,401.80/1,531,229,102.70 = 503,497,673.80/x
  3. Step 3: Cross multiply
    1,020,819,401.80x = 1,531,229,102.70 × 503,497,673.80
  4. Step 4: Simplify right side
    1,020,819,401.80x = 770,970,291,264,311,296
  5. Step 5: Solve for x
    x = 770,970,291,264,311,296/1,020,819,401.80
  6. Step 6: Final answer
    x = 755,246,510.70

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Half scale
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Double scale
Find fourth proportional to 1,020,819,402.80, 1,531,229,104.20 and 503,497,674.80
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.