Home / 165,260,987.10-247,608,045.45-78,813,251.10

Finding the Fourth Proportional to 165,260,987.10, 247,608,045.45 and 78,813,251.10

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Solution

The fourth proportional to 165,260,987.10, 247,608,045.45 and 78,813,251.10 is: 118,084,705.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,260,987.10 : 247,608,045.45 = 78,813,251.10 : x
  2. Step 2: Convert to fraction form
    165,260,987.10/247,608,045.45 = 78,813,251.10/x
  3. Step 3: Cross multiply
    165,260,987.10x = 247,608,045.45 × 78,813,251.10
  4. Step 4: Simplify right side
    165,260,987.10x = 19,514,795,060,431,060
  5. Step 5: Solve for x
    x = 19,514,795,060,431,060/165,260,987.10
  6. Step 6: Final answer
    x = 118,084,705.91

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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.