Home / 1,687,392,001.05-2,531,088,001.58-443,820,061.05

Finding the Fourth Proportional to 1,687,392,001.05, 2,531,088,001.58 and 443,820,061.05

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Solution

The fourth proportional to 1,687,392,001.05, 2,531,088,001.58 and 443,820,061.05 is: 665,730,091.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,687,392,001.05 : 2,531,088,001.58 = 443,820,061.05 : x
  2. Step 2: Convert to fraction form
    1,687,392,001.05/2,531,088,001.58 = 443,820,061.05/x
  3. Step 3: Cross multiply
    1,687,392,001.05x = 2,531,088,001.58 × 443,820,061.05
  4. Step 4: Simplify right side
    1,687,392,001.05x = 1,123,347,631,381,938,944
  5. Step 5: Solve for x
    x = 1,123,347,631,381,938,944/1,687,392,001.05
  6. Step 6: Final answer
    x = 665,730,091.58

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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.