Home / 105,391,259-145,439,937.42-57,156,763

Finding the Fourth Proportional to 105,391,259, 145,439,937.42 and 57,156,763

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Solution

The fourth proportional to 105,391,259, 145,439,937.42 and 57,156,763 is: 78,876,332.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,391,259 : 145,439,937.42 = 57,156,763 : x
  2. Step 2: Convert to fraction form
    105,391,259/145,439,937.42 = 57,156,763/x
  3. Step 3: Cross multiply
    105,391,259x = 145,439,937.42 × 57,156,763
  4. Step 4: Simplify right side
    105,391,259x = 8,312,876,033,849,771
  5. Step 5: Solve for x
    x = 8,312,876,033,849,771/105,391,259
  6. Step 6: Final answer
    x = 78,876,332.94

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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.