Home / 138,746,183.57-208,132,068.53-45,373,639.41

Finding the Fourth Proportional to 138,746,183.57, 208,132,068.53 and 45,373,639.41

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Solution

The fourth proportional to 138,746,183.57, 208,132,068.53 and 45,373,639.41 is: 68,064,642.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,746,183.57 : 208,132,068.53 = 45,373,639.41 : x
  2. Step 2: Convert to fraction form
    138,746,183.57/208,132,068.53 = 45,373,639.41/x
  3. Step 3: Cross multiply
    138,746,183.57x = 208,132,068.53 × 45,373,639.41
  4. Step 4: Simplify right side
    138,746,183.57x = 9,443,709,426,910,760
  5. Step 5: Solve for x
    x = 9,443,709,426,910,760/138,746,183.57
  6. Step 6: Final answer
    x = 68,064,642.82

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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.