Home / 89,688,695.40-134,533,043.10-81,752,509.80

Finding the Fourth Proportional to 89,688,695.40, 134,533,043.10 and 81,752,509.80

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Solution

The fourth proportional to 89,688,695.40, 134,533,043.10 and 81,752,509.80 is: 122,628,764.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,688,695.40 : 134,533,043.10 = 81,752,509.80 : x
  2. Step 2: Convert to fraction form
    89,688,695.40/134,533,043.10 = 81,752,509.80/x
  3. Step 3: Cross multiply
    89,688,695.40x = 134,533,043.10 × 81,752,509.80
  4. Step 4: Simplify right side
    89,688,695.40x = 10,998,413,924,456,572
  5. Step 5: Solve for x
    x = 10,998,413,924,456,572/89,688,695.40
  6. Step 6: Final answer
    x = 122,628,764.70

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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.