Home / 78,219,705.12-107,941,569.04-43,410,373.92

Finding the Fourth Proportional to 78,219,705.12, 107,941,569.04 and 43,410,373.92

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Solution

The fourth proportional to 78,219,705.12, 107,941,569.04 and 43,410,373.92 is: 59,905,414.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,219,705.12 : 107,941,569.04 = 43,410,373.92 : x
  2. Step 2: Convert to fraction form
    78,219,705.12/107,941,569.04 = 43,410,373.92/x
  3. Step 3: Cross multiply
    78,219,705.12x = 107,941,569.04 × 43,410,373.92
  4. Step 4: Simplify right side
    78,219,705.12x = 4,685,783,873,537,896
  5. Step 5: Solve for x
    x = 4,685,783,873,537,896/78,219,705.12
  6. Step 6: Final answer
    x = 59,905,414.71

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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.