Home / 87,225,843.60-130,697,047.80-72,770,648.40

Finding the Fourth Proportional to 87,225,843.60, 130,697,047.80 and 72,770,648.40

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Solution

The fourth proportional to 87,225,843.60, 130,697,047.80 and 72,770,648.40 is: 109,037,740.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,225,843.60 : 130,697,047.80 = 72,770,648.40 : x
  2. Step 2: Convert to fraction form
    87,225,843.60/130,697,047.80 = 72,770,648.40/x
  3. Step 3: Cross multiply
    87,225,843.60x = 130,697,047.80 × 72,770,648.40
  4. Step 4: Simplify right side
    87,225,843.60x = 9,510,908,912,371,794
  5. Step 5: Solve for x
    x = 9,510,908,912,371,794/87,225,843.60
  6. Step 6: Final answer
    x = 109,037,740.65

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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.