Home / 500,285,155.05-690,393,578.45-277,281,233.42

Finding the Fourth Proportional to 500,285,155.05, 690,393,578.45 and 277,281,233.42

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Solution

The fourth proportional to 500,285,155.05, 690,393,578.45 and 277,281,233.42 is: 382,648,137.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,285,155.05 : 690,393,578.45 = 277,281,233.42 : x
  2. Step 2: Convert to fraction form
    500,285,155.05/690,393,578.45 = 277,281,233.42/x
  3. Step 3: Cross multiply
    500,285,155.05x = 690,393,578.45 × 277,281,233.42
  4. Step 4: Simplify right side
    500,285,155.05x = 191,433,182,973,025,184
  5. Step 5: Solve for x
    x = 191,433,182,973,025,184/500,285,155.05
  6. Step 6: Final answer
    x = 382,648,137.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.