Home / 207,172,337.10-310,795,830.45-86,016,036.30

Finding the Fourth Proportional to 207,172,337.10, 310,795,830.45 and 86,016,036.30

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Solution

The fourth proportional to 207,172,337.10, 310,795,830.45 and 86,016,036.30 is: 129,039,551.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,172,337.10 : 310,795,830.45 = 86,016,036.30 : x
  2. Step 2: Convert to fraction form
    207,172,337.10/310,795,830.45 = 86,016,036.30/x
  3. Step 3: Cross multiply
    207,172,337.10x = 310,795,830.45 × 86,016,036.30
  4. Step 4: Simplify right side
    207,172,337.10x = 26,733,425,433,875,844
  5. Step 5: Solve for x
    x = 26,733,425,433,875,844/207,172,337.10
  6. Step 6: Final answer
    x = 129,039,551.36

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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.