Home / 449,278,681.88-673,990,438.75-138,386,153.32

Finding the Fourth Proportional to 449,278,681.88, 673,990,438.75 and 138,386,153.32

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Solution

The fourth proportional to 449,278,681.88, 673,990,438.75 and 138,386,153.32 is: 207,601,535.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,278,681.88 : 673,990,438.75 = 138,386,153.32 : x
  2. Step 2: Convert to fraction form
    449,278,681.88/673,990,438.75 = 138,386,153.32/x
  3. Step 3: Cross multiply
    449,278,681.88x = 673,990,438.75 × 138,386,153.32
  4. Step 4: Simplify right side
    449,278,681.88x = 93,270,944,191,040,624
  5. Step 5: Solve for x
    x = 93,270,944,191,040,624/449,278,681.88
  6. Step 6: Final answer
    x = 207,601,535.42

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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.