Home / 218,275,720.70-327,459,070.65-72,754,490.30

Finding the Fourth Proportional to 218,275,720.70, 327,459,070.65 and 72,754,490.30

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Solution

The fourth proportional to 218,275,720.70, 327,459,070.65 and 72,754,490.30 is: 109,146,897.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,275,720.70 : 327,459,070.65 = 72,754,490.30 : x
  2. Step 2: Convert to fraction form
    218,275,720.70/327,459,070.65 = 72,754,490.30/x
  3. Step 3: Cross multiply
    218,275,720.70x = 327,459,070.65 × 72,754,490.30
  4. Step 4: Simplify right side
    218,275,720.70x = 23,824,117,779,252,436
  5. Step 5: Solve for x
    x = 23,824,117,779,252,436/218,275,720.70
  6. Step 6: Final answer
    x = 109,146,897.80

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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.