Home / 88,564,811.20-132,847,216.80-78,487,115.20

Finding the Fourth Proportional to 88,564,811.20, 132,847,216.80 and 78,487,115.20

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Solution

The fourth proportional to 88,564,811.20, 132,847,216.80 and 78,487,115.20 is: 117,730,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,564,811.20 : 132,847,216.80 = 78,487,115.20 : x
  2. Step 2: Convert to fraction form
    88,564,811.20/132,847,216.80 = 78,487,115.20/x
  3. Step 3: Cross multiply
    88,564,811.20x = 132,847,216.80 × 78,487,115.20
  4. Step 4: Simplify right side
    88,564,811.20x = 10,426,794,808,980,976
  5. Step 5: Solve for x
    x = 10,426,794,808,980,976/88,564,811.20
  6. Step 6: Final answer
    x = 117,730,672.80

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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.