Home / 77,171,805.55-106,349,913.68-75,753,356.30

Finding the Fourth Proportional to 77,171,805.55, 106,349,913.68 and 75,753,356.30

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Solution

The fourth proportional to 77,171,805.55, 106,349,913.68 and 75,753,356.30 is: 104,395,158.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,171,805.55 : 106,349,913.68 = 75,753,356.30 : x
  2. Step 2: Convert to fraction form
    77,171,805.55/106,349,913.68 = 75,753,356.30/x
  3. Step 3: Cross multiply
    77,171,805.55x = 106,349,913.68 × 75,753,356.30
  4. Step 4: Simplify right side
    77,171,805.55x = 8,056,362,902,564,768
  5. Step 5: Solve for x
    x = 8,056,362,902,564,768/77,171,805.55
  6. Step 6: Final answer
    x = 104,395,158.90

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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.