Home / 748,865,348.20-1,123,298,022.30-727,341,987.70

Finding the Fourth Proportional to 748,865,348.20, 1,123,298,022.30 and 727,341,987.70

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Solution

The fourth proportional to 748,865,348.20, 1,123,298,022.30 and 727,341,987.70 is: 1,091,012,981.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,865,348.20 : 1,123,298,022.30 = 727,341,987.70 : x
  2. Step 2: Convert to fraction form
    748,865,348.20/1,123,298,022.30 = 727,341,987.70/x
  3. Step 3: Cross multiply
    748,865,348.20x = 1,123,298,022.30 × 727,341,987.70
  4. Step 4: Simplify right side
    748,865,348.20x = 817,021,816,319,160,960
  5. Step 5: Solve for x
    x = 817,021,816,319,160,960/748,865,348.20
  6. Step 6: Final answer
    x = 1,091,012,981.55

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Double scale
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1.5x scale

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.