Home / 78,841,040.70-118,283,679.45-38,452,842.30

Finding the Fourth Proportional to 78,841,040.70, 118,283,679.45 and 38,452,842.30

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Solution

The fourth proportional to 78,841,040.70, 118,283,679.45 and 38,452,842.30 is: 57,690,051.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,841,040.70 : 118,283,679.45 = 38,452,842.30 : x
  2. Step 2: Convert to fraction form
    78,841,040.70/118,283,679.45 = 38,452,842.30/x
  3. Step 3: Cross multiply
    78,841,040.70x = 118,283,679.45 × 38,452,842.30
  4. Step 4: Simplify right side
    78,841,040.70x = 4,548,343,672,554,600
  5. Step 5: Solve for x
    x = 4,548,343,672,554,600/78,841,040.70
  6. Step 6: Final answer
    x = 57,690,051.17

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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.