Home / 140,299,684.32-193,617,642.48-76,723,761.12

Finding the Fourth Proportional to 140,299,684.32, 193,617,642.48 and 76,723,761.12

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Solution

The fourth proportional to 140,299,684.32, 193,617,642.48 and 76,723,761.12 is: 105,881,020.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,299,684.32 : 193,617,642.48 = 76,723,761.12 : x
  2. Step 2: Convert to fraction form
    140,299,684.32/193,617,642.48 = 76,723,761.12/x
  3. Step 3: Cross multiply
    140,299,684.32x = 193,617,642.48 × 76,723,761.12
  4. Step 4: Simplify right side
    140,299,684.32x = 14,855,073,750,253,084
  5. Step 5: Solve for x
    x = 14,855,073,750,253,084/140,299,684.32
  6. Step 6: Final answer
    x = 105,881,020.49

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.