Home / 151,454,124.54-209,006,682.84-81,839,503.17

Finding the Fourth Proportional to 151,454,124.54, 209,006,682.84 and 81,839,503.17

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Solution

The fourth proportional to 151,454,124.54, 209,006,682.84 and 81,839,503.17 is: 112,938,509.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,454,124.54 : 209,006,682.84 = 81,839,503.17 : x
  2. Step 2: Convert to fraction form
    151,454,124.54/209,006,682.84 = 81,839,503.17/x
  3. Step 3: Cross multiply
    151,454,124.54x = 209,006,682.84 × 81,839,503.17
  4. Step 4: Simplify right side
    151,454,124.54x = 17,105,003,082,835,366
  5. Step 5: Solve for x
    x = 17,105,003,082,835,366/151,454,124.54
  6. Step 6: Final answer
    x = 112,938,509.50

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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.