Home / 999,015,966.69-1,498,007,613.92-438,548,402.85

Finding the Fourth Proportional to 999,015,966.69, 1,498,007,613.92 and 438,548,402.85

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Solution

The fourth proportional to 999,015,966.69, 1,498,007,613.92 and 438,548,402.85 is: 657,595,942.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,015,966.69 : 1,498,007,613.92 = 438,548,402.85 : x
  2. Step 2: Convert to fraction form
    999,015,966.69/1,498,007,613.92 = 438,548,402.85/x
  3. Step 3: Cross multiply
    999,015,966.69x = 1,498,007,613.92 × 438,548,402.85
  4. Step 4: Simplify right side
    999,015,966.69x = 656,948,846,539,562,752
  5. Step 5: Solve for x
    x = 656,948,846,539,562,752/999,015,966.69
  6. Step 6: Final answer
    x = 657,595,942.85

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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.