Home / 518,820,601.60-778,230,902.40-496,429,220.80

Finding the Fourth Proportional to 518,820,601.60, 778,230,902.40 and 496,429,220.80

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Solution

The fourth proportional to 518,820,601.60, 778,230,902.40 and 496,429,220.80 is: 744,643,831.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,820,601.60 : 778,230,902.40 = 496,429,220.80 : x
  2. Step 2: Convert to fraction form
    518,820,601.60/778,230,902.40 = 496,429,220.80/x
  3. Step 3: Cross multiply
    518,820,601.60x = 778,230,902.40 × 496,429,220.80
  4. Step 4: Simplify right side
    518,820,601.60x = 386,336,560,480,912,832
  5. Step 5: Solve for x
    x = 386,336,560,480,912,832/518,820,601.60
  6. Step 6: Final answer
    x = 744,643,831.20

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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.