Home / 125,479,215.40-188,218,823.10-91,041,838.60

Finding the Fourth Proportional to 125,479,215.40, 188,218,823.10 and 91,041,838.60

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Solution

The fourth proportional to 125,479,215.40, 188,218,823.10 and 91,041,838.60 is: 136,562,757.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,479,215.40 : 188,218,823.10 = 91,041,838.60 : x
  2. Step 2: Convert to fraction form
    125,479,215.40/188,218,823.10 = 91,041,838.60/x
  3. Step 3: Cross multiply
    125,479,215.40x = 188,218,823.10 × 91,041,838.60
  4. Step 4: Simplify right side
    125,479,215.40x = 17,135,787,714,152,150
  5. Step 5: Solve for x
    x = 17,135,787,714,152,150/125,479,215.40
  6. Step 6: Final answer
    x = 136,562,757.90

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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.