Home / 128,822,875.40-193,234,313.10-88,008,206.60

Finding the Fourth Proportional to 128,822,875.40, 193,234,313.10 and 88,008,206.60

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Solution

The fourth proportional to 128,822,875.40, 193,234,313.10 and 88,008,206.60 is: 132,012,309.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,822,875.40 : 193,234,313.10 = 88,008,206.60 : x
  2. Step 2: Convert to fraction form
    128,822,875.40/193,234,313.10 = 88,008,206.60/x
  3. Step 3: Cross multiply
    128,822,875.40x = 193,234,313.10 × 88,008,206.60
  4. Step 4: Simplify right side
    128,822,875.40x = 17,006,205,349,513,884
  5. Step 5: Solve for x
    x = 17,006,205,349,513,884/128,822,875.40
  6. Step 6: Final answer
    x = 132,012,309.90

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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.