Home / 72,502,066.60-108,753,099.90-69,715,148.20

Finding the Fourth Proportional to 72,502,066.60, 108,753,099.90 and 69,715,148.20

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Solution

The fourth proportional to 72,502,066.60, 108,753,099.90 and 69,715,148.20 is: 104,572,722.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,502,066.60 : 108,753,099.90 = 69,715,148.20 : x
  2. Step 2: Convert to fraction form
    72,502,066.60/108,753,099.90 = 69,715,148.20/x
  3. Step 3: Cross multiply
    72,502,066.60x = 108,753,099.90 × 69,715,148.20
  4. Step 4: Simplify right side
    72,502,066.60x = 7,581,738,476,737,906
  5. Step 5: Solve for x
    x = 7,581,738,476,737,906/72,502,066.60
  6. Step 6: Final answer
    x = 104,572,722.30

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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.