Home / 449,278,750.91-673,990,542.39-138,386,222.45

Finding the Fourth Proportional to 449,278,750.91, 673,990,542.39 and 138,386,222.45

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Solution

The fourth proportional to 449,278,750.91, 673,990,542.39 and 138,386,222.45 is: 207,601,639.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,278,750.91 : 673,990,542.39 = 138,386,222.45 : x
  2. Step 2: Convert to fraction form
    449,278,750.91/673,990,542.39 = 138,386,222.45/x
  3. Step 3: Cross multiply
    449,278,750.91x = 673,990,542.39 × 138,386,222.45
  4. Step 4: Simplify right side
    449,278,750.91x = 93,271,005,128,055,136
  5. Step 5: Solve for x
    x = 93,271,005,128,055,136/449,278,750.91
  6. Step 6: Final answer
    x = 207,601,639.16

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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.