Home / 218,326,686.80-327,490,030.20-72,764,996.90

Finding the Fourth Proportional to 218,326,686.80, 327,490,030.20 and 72,764,996.90

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Solution

The fourth proportional to 218,326,686.80, 327,490,030.20 and 72,764,996.90 is: 109,147,495.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,326,686.80 : 327,490,030.20 = 72,764,996.90 : x
  2. Step 2: Convert to fraction form
    218,326,686.80/327,490,030.20 = 72,764,996.90/x
  3. Step 3: Cross multiply
    218,326,686.80x = 327,490,030.20 × 72,764,996.90
  4. Step 4: Simplify right side
    218,326,686.80x = 23,829,811,032,283,908
  5. Step 5: Solve for x
    x = 23,829,811,032,283,908/218,326,686.80
  6. Step 6: Final answer
    x = 109,147,495.35

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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.