Home / 126,144,411.20-189,216,616.80-45,354,881.60

Finding the Fourth Proportional to 126,144,411.20, 189,216,616.80 and 45,354,881.60

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Solution

The fourth proportional to 126,144,411.20, 189,216,616.80 and 45,354,881.60 is: 68,032,322.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,144,411.20 : 189,216,616.80 = 45,354,881.60 : x
  2. Step 2: Convert to fraction form
    126,144,411.20/189,216,616.80 = 45,354,881.60/x
  3. Step 3: Cross multiply
    126,144,411.20x = 189,216,616.80 × 45,354,881.60
  4. Step 4: Simplify right side
    126,144,411.20x = 8,581,897,251,716,572
  5. Step 5: Solve for x
    x = 8,581,897,251,716,572/126,144,411.20
  6. Step 6: Final answer
    x = 68,032,322.40

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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.