Home / 891,121,898.72-1,336,681,010.16-502,768,435.04

Finding the Fourth Proportional to 891,121,898.72, 1,336,681,010.16 and 502,768,435.04

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Solution

The fourth proportional to 891,121,898.72, 1,336,681,010.16 and 502,768,435.04 is: 754,151,615.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,121,898.72 : 1,336,681,010.16 = 502,768,435.04 : x
  2. Step 2: Convert to fraction form
    891,121,898.72/1,336,681,010.16 = 502,768,435.04/x
  3. Step 3: Cross multiply
    891,121,898.72x = 1,336,681,010.16 × 502,768,435.04
  4. Step 4: Simplify right side
    891,121,898.72x = 672,041,019,625,829,632
  5. Step 5: Solve for x
    x = 672,041,019,625,829,632/891,121,898.72
  6. Step 6: Final answer
    x = 754,151,615.61

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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.