Home / 87,219,441.60-130,687,444.80-72,764,246.40

Finding the Fourth Proportional to 87,219,441.60, 130,687,444.80 and 72,764,246.40

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Solution

The fourth proportional to 87,219,441.60, 130,687,444.80 and 72,764,246.40 is: 109,028,139.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,219,441.60 : 130,687,444.80 = 72,764,246.40 : x
  2. Step 2: Convert to fraction form
    87,219,441.60/130,687,444.80 = 72,764,246.40/x
  3. Step 3: Cross multiply
    87,219,441.60x = 130,687,444.80 × 72,764,246.40
  4. Step 4: Simplify right side
    87,219,441.60x = 9,509,373,434,813,600
  5. Step 5: Solve for x
    x = 9,509,373,434,813,600/87,219,441.60
  6. Step 6: Final answer
    x = 109,028,139.37

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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.