Home / 79,827,008.20-119,572,550.70-66,390,080.20

Finding the Fourth Proportional to 79,827,008.20, 119,572,550.70 and 66,390,080.20

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Solution

The fourth proportional to 79,827,008.20, 119,572,550.70 and 66,390,080.20 is: 99,445,430.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,827,008.20 : 119,572,550.70 = 66,390,080.20 : x
  2. Step 2: Convert to fraction form
    79,827,008.20/119,572,550.70 = 66,390,080.20/x
  3. Step 3: Cross multiply
    79,827,008.20x = 119,572,550.70 × 66,390,080.20
  4. Step 4: Simplify right side
    79,827,008.20x = 7,938,431,230,691,567
  5. Step 5: Solve for x
    x = 7,938,431,230,691,567/79,827,008.20
  6. Step 6: Final answer
    x = 99,445,430.93

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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.