Home / 161,838,005.10-242,757,007.65-147,010,801.20

Finding the Fourth Proportional to 161,838,005.10, 242,757,007.65 and 147,010,801.20

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Solution

The fourth proportional to 161,838,005.10, 242,757,007.65 and 147,010,801.20 is: 220,516,201.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,838,005.10 : 242,757,007.65 = 147,010,801.20 : x
  2. Step 2: Convert to fraction form
    161,838,005.10/242,757,007.65 = 147,010,801.20/x
  3. Step 3: Cross multiply
    161,838,005.10x = 242,757,007.65 × 147,010,801.20
  4. Step 4: Simplify right side
    161,838,005.10x = 35,687,902,191,541,028
  5. Step 5: Solve for x
    x = 35,687,902,191,541,028/161,838,005.10
  6. Step 6: Final answer
    x = 220,516,201.80

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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.