Home / 78,333,276.88-108,165,184.33-65,348,598.88

Finding the Fourth Proportional to 78,333,276.88, 108,165,184.33 and 65,348,598.88

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Solution

The fourth proportional to 78,333,276.88, 108,165,184.33 and 65,348,598.88 is: 90,235,510.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,333,276.88 : 108,165,184.33 = 65,348,598.88 : x
  2. Step 2: Convert to fraction form
    78,333,276.88/108,165,184.33 = 65,348,598.88/x
  3. Step 3: Cross multiply
    78,333,276.88x = 108,165,184.33 × 65,348,598.88
  4. Step 4: Simplify right side
    78,333,276.88x = 7,068,443,243,021,606
  5. Step 5: Solve for x
    x = 7,068,443,243,021,606/78,333,276.88
  6. Step 6: Final answer
    x = 90,235,510.69

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.