Home / 78,976,896.30-118,465,344.45-65,539,968.30

Finding the Fourth Proportional to 78,976,896.30, 118,465,344.45 and 65,539,968.30

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Solution

The fourth proportional to 78,976,896.30, 118,465,344.45 and 65,539,968.30 is: 98,309,952.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,976,896.30 : 118,465,344.45 = 65,539,968.30 : x
  2. Step 2: Convert to fraction form
    78,976,896.30/118,465,344.45 = 65,539,968.30/x
  3. Step 3: Cross multiply
    78,976,896.30x = 118,465,344.45 × 65,539,968.30
  4. Step 4: Simplify right side
    78,976,896.30x = 7,764,214,919,901,581
  5. Step 5: Solve for x
    x = 7,764,214,919,901,581/78,976,896.30
  6. Step 6: Final answer
    x = 98,309,952.45

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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.