Home / 138,746,181.56-208,132,065.53-45,373,637.41

Finding the Fourth Proportional to 138,746,181.56, 208,132,065.53 and 45,373,637.41

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Solution

The fourth proportional to 138,746,181.56, 208,132,065.53 and 45,373,637.41 is: 68,064,639.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,746,181.56 : 208,132,065.53 = 45,373,637.41 : x
  2. Step 2: Convert to fraction form
    138,746,181.56/208,132,065.53 = 45,373,637.41/x
  3. Step 3: Cross multiply
    138,746,181.56x = 208,132,065.53 × 45,373,637.41
  4. Step 4: Simplify right side
    138,746,181.56x = 9,443,708,874,639,144
  5. Step 5: Solve for x
    x = 9,443,708,874,639,144/138,746,181.56
  6. Step 6: Final answer
    x = 68,064,639.82

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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.