Home / 218,326,812.30-327,490,218.45-72,765,122.40

Finding the Fourth Proportional to 218,326,812.30, 327,490,218.45 and 72,765,122.40

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Solution

The fourth proportional to 218,326,812.30, 327,490,218.45 and 72,765,122.40 is: 109,147,683.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,326,812.30 : 327,490,218.45 = 72,765,122.40 : x
  2. Step 2: Convert to fraction form
    218,326,812.30/327,490,218.45 = 72,765,122.40/x
  3. Step 3: Cross multiply
    218,326,812.30x = 327,490,218.45 × 72,765,122.40
  4. Step 4: Simplify right side
    218,326,812.30x = 23,829,865,830,316,988
  5. Step 5: Solve for x
    x = 23,829,865,830,316,988/218,326,812.30
  6. Step 6: Final answer
    x = 109,147,683.60

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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.