Home / 78,841,051.20-118,283,695.20-38,452,852.80

Finding the Fourth Proportional to 78,841,051.20, 118,283,695.20 and 38,452,852.80

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Solution

The fourth proportional to 78,841,051.20, 118,283,695.20 and 38,452,852.80 is: 57,690,066.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,841,051.20 : 118,283,695.20 = 38,452,852.80 : x
  2. Step 2: Convert to fraction form
    78,841,051.20/118,283,695.20 = 38,452,852.80/x
  3. Step 3: Cross multiply
    78,841,051.20x = 118,283,695.20 × 38,452,852.80
  4. Step 4: Simplify right side
    78,841,051.20x = 4,548,345,520,165,666
  5. Step 5: Solve for x
    x = 4,548,345,520,165,666/78,841,051.20
  6. Step 6: Final answer
    x = 57,690,066.93

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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.