Home / 72,587,529.60-108,881,294.40-67,044,796.80

Finding the Fourth Proportional to 72,587,529.60, 108,881,294.40 and 67,044,796.80

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Solution

The fourth proportional to 72,587,529.60, 108,881,294.40 and 67,044,796.80 is: 100,567,195.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,587,529.60 : 108,881,294.40 = 67,044,796.80 : x
  2. Step 2: Convert to fraction form
    72,587,529.60/108,881,294.40 = 67,044,796.80/x
  3. Step 3: Cross multiply
    72,587,529.60x = 108,881,294.40 × 67,044,796.80
  4. Step 4: Simplify right side
    72,587,529.60x = 7,299,924,258,368,978
  5. Step 5: Solve for x
    x = 7,299,924,258,368,978/72,587,529.60
  6. Step 6: Final answer
    x = 100,567,195.20

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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.