Home / 999,520,290.80-1,499,419,938.60-417,121,036.40

Finding the Fourth Proportional to 999,520,290.80, 1,499,419,938.60 and 417,121,036.40

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Solution

The fourth proportional to 999,520,290.80, 1,499,419,938.60 and 417,121,036.40 is: 625,739,771.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,520,290.80 : 1,499,419,938.60 = 417,121,036.40 : x
  2. Step 2: Convert to fraction form
    999,520,290.80/1,499,419,938.60 = 417,121,036.40/x
  3. Step 3: Cross multiply
    999,520,290.80x = 1,499,419,938.60 × 417,121,036.40
  4. Step 4: Simplify right side
    999,520,290.80x = 625,439,598,787,656,320
  5. Step 5: Solve for x
    x = 625,439,598,787,656,320/999,520,290.80
  6. Step 6: Final answer
    x = 625,739,771.91

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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.