Home / 1,288,869,399.60-1,933,304,099.40-368,775,754.80

Finding the Fourth Proportional to 1,288,869,399.60, 1,933,304,099.40 and 368,775,754.80

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Solution

The fourth proportional to 1,288,869,399.60, 1,933,304,099.40 and 368,775,754.80 is: 553,163,632.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,288,869,399.60 : 1,933,304,099.40 = 368,775,754.80 : x
  2. Step 2: Convert to fraction form
    1,288,869,399.60/1,933,304,099.40 = 368,775,754.80/x
  3. Step 3: Cross multiply
    1,288,869,399.60x = 1,933,304,099.40 × 368,775,754.80
  4. Step 4: Simplify right side
    1,288,869,399.60x = 712,955,678,514,169,344
  5. Step 5: Solve for x
    x = 712,955,678,514,169,344/1,288,869,399.60
  6. Step 6: Final answer
    x = 553,163,632.20

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Double scale
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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.