Home / 484,016,641.60-726,024,962.40-398,986,081.60

Finding the Fourth Proportional to 484,016,641.60, 726,024,962.40 and 398,986,081.60

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Solution

The fourth proportional to 484,016,641.60, 726,024,962.40 and 398,986,081.60 is: 598,479,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,016,641.60 : 726,024,962.40 = 398,986,081.60 : x
  2. Step 2: Convert to fraction form
    484,016,641.60/726,024,962.40 = 398,986,081.60/x
  3. Step 3: Cross multiply
    484,016,641.60x = 726,024,962.40 × 398,986,081.60
  4. Step 4: Simplify right side
    484,016,641.60x = 289,673,854,891,763,328
  5. Step 5: Solve for x
    x = 289,673,854,891,763,328/484,016,641.60
  6. Step 6: Final answer
    x = 598,479,122.40

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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.