Home / 261,068,997.90-391,648,110.93-107,631,177.42

Finding the Fourth Proportional to 261,068,997.90, 391,648,110.93 and 107,631,177.42

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Solution

The fourth proportional to 261,068,997.90, 391,648,110.93 and 107,631,177.42 is: 161,465,159.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,068,997.90 : 391,648,110.93 = 107,631,177.42 : x
  2. Step 2: Convert to fraction form
    261,068,997.90/391,648,110.93 = 107,631,177.42/x
  3. Step 3: Cross multiply
    261,068,997.90x = 391,648,110.93 × 107,631,177.42
  4. Step 4: Simplify right side
    261,068,997.90x = 42,153,547,313,714,672
  5. Step 5: Solve for x
    x = 42,153,547,313,714,672/261,068,997.90
  6. Step 6: Final answer
    x = 161,465,159.22

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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.