Home / 30,267,463.20-45,401,194.80-21,020,389.80

Finding the Fourth Proportional to 30,267,463.20, 45,401,194.80 and 21,020,389.80

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Solution

The fourth proportional to 30,267,463.20, 45,401,194.80 and 21,020,389.80 is: 31,530,584.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,267,463.20 : 45,401,194.80 = 21,020,389.80 : x
  2. Step 2: Convert to fraction form
    30,267,463.20/45,401,194.80 = 21,020,389.80/x
  3. Step 3: Cross multiply
    30,267,463.20x = 45,401,194.80 × 21,020,389.80
  4. Step 4: Simplify right side
    30,267,463.20x = 954,350,812,081,733
  5. Step 5: Solve for x
    x = 954,350,812,081,733/30,267,463.20
  6. Step 6: Final answer
    x = 31,530,584.70

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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.