Home / 125,185,648.20-187,645,941.84-42,108,313.76

Finding the Fourth Proportional to 125,185,648.20, 187,645,941.84 and 42,108,313.76

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Solution

The fourth proportional to 125,185,648.20, 187,645,941.84 and 42,108,313.76 is: 63,117,891.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,185,648.20 : 187,645,941.84 = 42,108,313.76 : x
  2. Step 2: Convert to fraction form
    125,185,648.20/187,645,941.84 = 42,108,313.76/x
  3. Step 3: Cross multiply
    125,185,648.20x = 187,645,941.84 × 42,108,313.76
  4. Step 4: Simplify right side
    125,185,648.20x = 7,901,454,194,789,431
  5. Step 5: Solve for x
    x = 7,901,454,194,789,431/125,185,648.20
  6. Step 6: Final answer
    x = 63,117,891.77

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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.