Home / 72,758,487.80-109,137,731.70-62,979,973.40

Finding the Fourth Proportional to 72,758,487.80, 109,137,731.70 and 62,979,973.40

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Solution

The fourth proportional to 72,758,487.80, 109,137,731.70 and 62,979,973.40 is: 94,469,960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,758,487.80 : 109,137,731.70 = 62,979,973.40 : x
  2. Step 2: Convert to fraction form
    72,758,487.80/109,137,731.70 = 62,979,973.40/x
  3. Step 3: Cross multiply
    72,758,487.80x = 109,137,731.70 × 62,979,973.40
  4. Step 4: Simplify right side
    72,758,487.80x = 6,873,491,439,402,337
  5. Step 5: Solve for x
    x = 6,873,491,439,402,337/72,758,487.80
  6. Step 6: Final answer
    x = 94,469,960.10

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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.