Home / 1,112,859,009.60-1,669,288,514.40-385,921,204.80

Finding the Fourth Proportional to 1,112,859,009.60, 1,669,288,514.40 and 385,921,204.80

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Solution

The fourth proportional to 1,112,859,009.60, 1,669,288,514.40 and 385,921,204.80 is: 578,881,807.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,859,009.60 : 1,669,288,514.40 = 385,921,204.80 : x
  2. Step 2: Convert to fraction form
    1,112,859,009.60/1,669,288,514.40 = 385,921,204.80/x
  3. Step 3: Cross multiply
    1,112,859,009.60x = 1,669,288,514.40 × 385,921,204.80
  4. Step 4: Simplify right side
    1,112,859,009.60x = 644,213,834,636,050,176
  5. Step 5: Solve for x
    x = 644,213,834,636,050,176/1,112,859,009.60
  6. Step 6: Final answer
    x = 578,881,807.20

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Double scale
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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.