Home / 66,411,379.20-99,659,059.20-39,117,619.20

Finding the Fourth Proportional to 66,411,379.20, 99,659,059.20 and 39,117,619.20

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Solution

The fourth proportional to 66,411,379.20, 99,659,059.20 and 39,117,619.20 is: 58,701,161.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,411,379.20 : 99,659,059.20 = 39,117,619.20 : x
  2. Step 2: Convert to fraction form
    66,411,379.20/99,659,059.20 = 39,117,619.20/x
  3. Step 3: Cross multiply
    66,411,379.20x = 99,659,059.20 × 39,117,619.20
  4. Step 4: Simplify right side
    66,411,379.20x = 3,898,425,127,615,857
  5. Step 5: Solve for x
    x = 3,898,425,127,615,857/66,411,379.20
  6. Step 6: Final answer
    x = 58,701,161.98

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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.