Home / 112,492,950-155,256,836.76-71,243,677.68

Finding the Fourth Proportional to 112,492,950, 155,256,836.76 and 71,243,677.68

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Solution

The fourth proportional to 112,492,950, 155,256,836.76 and 71,243,677.68 is: 98,326,766.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,492,950 : 155,256,836.76 = 71,243,677.68 : x
  2. Step 2: Convert to fraction form
    112,492,950/155,256,836.76 = 71,243,677.68/x
  3. Step 3: Cross multiply
    112,492,950x = 155,256,836.76 × 71,243,677.68
  4. Step 4: Simplify right side
    112,492,950x = 11,061,068,035,745,816
  5. Step 5: Solve for x
    x = 11,061,068,035,745,816/112,492,950
  6. Step 6: Final answer
    x = 98,326,766.57

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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.