Home / 137,992,993.20-206,989,489.80-40,963,676.40

Finding the Fourth Proportional to 137,992,993.20, 206,989,489.80 and 40,963,676.40

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Solution

The fourth proportional to 137,992,993.20, 206,989,489.80 and 40,963,676.40 is: 61,445,514.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,992,993.20 : 206,989,489.80 = 40,963,676.40 : x
  2. Step 2: Convert to fraction form
    137,992,993.20/206,989,489.80 = 40,963,676.40/x
  3. Step 3: Cross multiply
    137,992,993.20x = 206,989,489.80 × 40,963,676.40
  4. Step 4: Simplify right side
    137,992,993.20x = 8,479,050,478,368,301
  5. Step 5: Solve for x
    x = 8,479,050,478,368,301/137,992,993.20
  6. Step 6: Final answer
    x = 61,445,514.60

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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.