Home / 766,223,139.20-1,149,334,708.80-459,861,180.80

Finding the Fourth Proportional to 766,223,139.20, 1,149,334,708.80 and 459,861,180.80

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Solution

The fourth proportional to 766,223,139.20, 1,149,334,708.80 and 459,861,180.80 is: 689,791,771.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,223,139.20 : 1,149,334,708.80 = 459,861,180.80 : x
  2. Step 2: Convert to fraction form
    766,223,139.20/1,149,334,708.80 = 459,861,180.80/x
  3. Step 3: Cross multiply
    766,223,139.20x = 1,149,334,708.80 × 459,861,180.80
  4. Step 4: Simplify right side
    766,223,139.20x = 528,534,416,323,192,128
  5. Step 5: Solve for x
    x = 528,534,416,323,192,128/766,223,139.20
  6. Step 6: Final answer
    x = 689,791,771.20

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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.