Home / 66,572,221.60-99,795,346.80-39,299,456.80

Finding the Fourth Proportional to 66,572,221.60, 99,795,346.80 and 39,299,456.80

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Solution

The fourth proportional to 66,572,221.60, 99,795,346.80 and 39,299,456.80 is: 58,912,003.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,572,221.60 : 99,795,346.80 = 39,299,456.80 : x
  2. Step 2: Convert to fraction form
    66,572,221.60/99,795,346.80 = 39,299,456.80/x
  3. Step 3: Cross multiply
    66,572,221.60x = 99,795,346.80 × 39,299,456.80
  4. Step 4: Simplify right side
    66,572,221.60x = 3,921,902,920,407,618
  5. Step 5: Solve for x
    x = 3,921,902,920,407,618/66,572,221.60
  6. Step 6: Final answer
    x = 58,912,003.03

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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.