Home / 78,187,669.83-107,899,000.71-43,380,277.23

Finding the Fourth Proportional to 78,187,669.83, 107,899,000.71 and 43,380,277.23

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Solution

The fourth proportional to 78,187,669.83, 107,899,000.71 and 43,380,277.23 is: 59,864,791.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,187,669.83 : 107,899,000.71 = 43,380,277.23 : x
  2. Step 2: Convert to fraction form
    78,187,669.83/107,899,000.71 = 43,380,277.23/x
  3. Step 3: Cross multiply
    78,187,669.83x = 107,899,000.71 × 43,380,277.23
  4. Step 4: Simplify right side
    78,187,669.83x = 4,680,688,563,639,766
  5. Step 5: Solve for x
    x = 4,680,688,563,639,766/78,187,669.83
  6. Step 6: Final answer
    x = 59,864,791.65

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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.