Home / 813,987,776.46-1,221,483,877.76-377,207,047.38

Finding the Fourth Proportional to 813,987,776.46, 1,221,483,877.76 and 377,207,047.38

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Solution

The fourth proportional to 813,987,776.46, 1,221,483,877.76 and 377,207,047.38 is: 566,043,299.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    813,987,776.46 : 1,221,483,877.76 = 377,207,047.38 : x
  2. Step 2: Convert to fraction form
    813,987,776.46/1,221,483,877.76 = 377,207,047.38/x
  3. Step 3: Cross multiply
    813,987,776.46x = 1,221,483,877.76 × 377,207,047.38
  4. Step 4: Simplify right side
    813,987,776.46x = 460,752,326,952,122,432
  5. Step 5: Solve for x
    x = 460,752,326,952,122,432/813,987,776.46
  6. Step 6: Final answer
    x = 566,043,299.76

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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.