Home / 105,391,257-145,439,934.66-57,156,761

Finding the Fourth Proportional to 105,391,257, 145,439,934.66 and 57,156,761

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Solution

The fourth proportional to 105,391,257, 145,439,934.66 and 57,156,761 is: 78,876,330.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,391,257 : 145,439,934.66 = 57,156,761 : x
  2. Step 2: Convert to fraction form
    105,391,257/145,439,934.66 = 57,156,761/x
  3. Step 3: Cross multiply
    105,391,257x = 145,439,934.66 × 57,156,761
  4. Step 4: Simplify right side
    105,391,257x = 8,312,875,585,217,236
  5. Step 5: Solve for x
    x = 8,312,875,585,217,236/105,391,257
  6. Step 6: Final answer
    x = 78,876,330.18

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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.