Home / 748,865,356.20-1,123,298,034.30-727,341,995.70

Finding the Fourth Proportional to 748,865,356.20, 1,123,298,034.30 and 727,341,995.70

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Solution

The fourth proportional to 748,865,356.20, 1,123,298,034.30 and 727,341,995.70 is: 1,091,012,993.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    748,865,356.20 : 1,123,298,034.30 = 727,341,995.70 : x
  2. Step 2: Convert to fraction form
    748,865,356.20/1,123,298,034.30 = 727,341,995.70/x
  3. Step 3: Cross multiply
    748,865,356.20x = 1,123,298,034.30 × 727,341,995.70
  4. Step 4: Simplify right side
    748,865,356.20x = 817,021,834,033,649,024
  5. Step 5: Solve for x
    x = 817,021,834,033,649,024/748,865,356.20
  6. Step 6: Final answer
    x = 1,091,012,993.55

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Half scale
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Double scale
Find fourth proportional to 748,865,357.20, 1,123,298,035.80 and 727,341,996.70
Similar ratio
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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.