Home / 87,102,002.40-130,653,003.60-70,977,688.80

Finding the Fourth Proportional to 87,102,002.40, 130,653,003.60 and 70,977,688.80

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Solution

The fourth proportional to 87,102,002.40, 130,653,003.60 and 70,977,688.80 is: 106,466,533.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,102,002.40 : 130,653,003.60 = 70,977,688.80 : x
  2. Step 2: Convert to fraction form
    87,102,002.40/130,653,003.60 = 70,977,688.80/x
  3. Step 3: Cross multiply
    87,102,002.40x = 130,653,003.60 × 70,977,688.80
  4. Step 4: Simplify right side
    87,102,002.40x = 9,273,448,230,306,078
  5. Step 5: Solve for x
    x = 9,273,448,230,306,078/87,102,002.40
  6. Step 6: Final answer
    x = 106,466,533.20

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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.