Home / 154,018,700.30-212,545,993.27-83,454,254.83

Finding the Fourth Proportional to 154,018,700.30, 212,545,993.27 and 83,454,254.83

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Solution

The fourth proportional to 154,018,700.30, 212,545,993.27 and 83,454,254.83 is: 115,166,972.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,018,700.30 : 212,545,993.27 = 83,454,254.83 : x
  2. Step 2: Convert to fraction form
    154,018,700.30/212,545,993.27 = 83,454,254.83/x
  3. Step 3: Cross multiply
    154,018,700.30x = 212,545,993.27 × 83,454,254.83
  4. Step 4: Simplify right side
    154,018,700.30x = 17,737,867,485,890,976
  5. Step 5: Solve for x
    x = 17,737,867,485,890,976/154,018,700.30
  6. Step 6: Final answer
    x = 115,166,972.92

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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.