Home / 132,857,938.80-199,342,895.40-72,317,113.20

Finding the Fourth Proportional to 132,857,938.80, 199,342,895.40 and 72,317,113.20

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Solution

The fourth proportional to 132,857,938.80, 199,342,895.40 and 72,317,113.20 is: 108,506,144.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,857,938.80 : 199,342,895.40 = 72,317,113.20 : x
  2. Step 2: Convert to fraction form
    132,857,938.80/199,342,895.40 = 72,317,113.20/x
  3. Step 3: Cross multiply
    132,857,938.80x = 199,342,895.40 × 72,317,113.20
  4. Step 4: Simplify right side
    132,857,938.80x = 14,415,902,732,257,560
  5. Step 5: Solve for x
    x = 14,415,902,732,257,560/132,857,938.80
  6. Step 6: Final answer
    x = 108,506,144.70

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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.