Home / 71,745,165.68-99,011,468.39-40,385,238.08

Finding the Fourth Proportional to 71,745,165.68, 99,011,468.39 and 40,385,238.08

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Solution

The fourth proportional to 71,745,165.68, 99,011,468.39 and 40,385,238.08 is: 55,733,395.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,745,165.68 : 99,011,468.39 = 40,385,238.08 : x
  2. Step 2: Convert to fraction form
    71,745,165.68/99,011,468.39 = 40,385,238.08/x
  3. Step 3: Cross multiply
    71,745,165.68x = 99,011,468.39 × 40,385,238.08
  4. Step 4: Simplify right side
    71,745,165.68x = 3,998,601,722,883,561.50
  5. Step 5: Solve for x
    x = 3,998,601,722,883,561.50/71,745,165.68
  6. Step 6: Final answer
    x = 55,733,395.91

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.