Home / 728,124,809.56-1,092,964,446.11-313,806,098.64

Finding the Fourth Proportional to 728,124,809.56, 1,092,964,446.11 and 313,806,098.64

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Solution

The fourth proportional to 728,124,809.56, 1,092,964,446.11 and 313,806,098.64 is: 471,044,118.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,124,809.56 : 1,092,964,446.11 = 313,806,098.64 : x
  2. Step 2: Convert to fraction form
    728,124,809.56/1,092,964,446.11 = 313,806,098.64/x
  3. Step 3: Cross multiply
    728,124,809.56x = 1,092,964,446.11 × 313,806,098.64
  4. Step 4: Simplify right side
    728,124,809.56x = 342,978,908,790,890,752
  5. Step 5: Solve for x
    x = 342,978,908,790,890,752/728,124,809.56
  6. Step 6: Final answer
    x = 471,044,118.11

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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.