Home / 516,128,793.60-774,193,190.40-512,545,612.80

Finding the Fourth Proportional to 516,128,793.60, 774,193,190.40 and 512,545,612.80

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Solution

The fourth proportional to 516,128,793.60, 774,193,190.40 and 512,545,612.80 is: 768,818,419.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    516,128,793.60 : 774,193,190.40 = 512,545,612.80 : x
  2. Step 2: Convert to fraction form
    516,128,793.60/774,193,190.40 = 512,545,612.80/x
  3. Step 3: Cross multiply
    516,128,793.60x = 774,193,190.40 × 512,545,612.80
  4. Step 4: Simplify right side
    516,128,793.60x = 396,809,323,199,155,072
  5. Step 5: Solve for x
    x = 396,809,323,199,155,072/516,128,793.60
  6. Step 6: Final answer
    x = 768,818,419.20

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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.