Home / 141,049,984.76-194,645,206.48-78,324,446.40

Finding the Fourth Proportional to 141,049,984.76, 194,645,206.48 and 78,324,446.40

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Solution

The fourth proportional to 141,049,984.76, 194,645,206.48 and 78,324,446.40 is: 108,085,641.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,049,984.76 : 194,645,206.48 = 78,324,446.40 : x
  2. Step 2: Convert to fraction form
    141,049,984.76/194,645,206.48 = 78,324,446.40/x
  3. Step 3: Cross multiply
    141,049,984.76x = 194,645,206.48 × 78,324,446.40
  4. Step 4: Simplify right side
    141,049,984.76x = 15,245,478,041,617,332
  5. Step 5: Solve for x
    x = 15,245,478,041,617,332/141,049,984.76
  6. Step 6: Final answer
    x = 108,085,641.18

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.