Home / 138,600,530.67-191,268,736.13-76,720,869.24

Finding the Fourth Proportional to 138,600,530.67, 191,268,736.13 and 76,720,869.24

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Solution

The fourth proportional to 138,600,530.67, 191,268,736.13 and 76,720,869.24 is: 105,874,801.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,600,530.67 : 191,268,736.13 = 76,720,869.24 : x
  2. Step 2: Convert to fraction form
    138,600,530.67/191,268,736.13 = 76,720,869.24/x
  3. Step 3: Cross multiply
    138,600,530.67x = 191,268,736.13 × 76,720,869.24
  4. Step 4: Simplify right side
    138,600,530.67x = 14,674,303,694,329,792
  5. Step 5: Solve for x
    x = 14,674,303,694,329,792/138,600,530.67
  6. Step 6: Final answer
    x = 105,874,801.66

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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.