Home / 81,023,513.31-111,812,439.96-43,853,787

Finding the Fourth Proportional to 81,023,513.31, 111,812,439.96 and 43,853,787

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Solution

The fourth proportional to 81,023,513.31, 111,812,439.96 and 43,853,787 is: 60,518,221.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,023,513.31 : 111,812,439.96 = 43,853,787 : x
  2. Step 2: Convert to fraction form
    81,023,513.31/111,812,439.96 = 43,853,787/x
  3. Step 3: Cross multiply
    81,023,513.31x = 111,812,439.96 × 43,853,787
  4. Step 4: Simplify right side
    81,023,513.31x = 4,903,398,925,956,128
  5. Step 5: Solve for x
    x = 4,903,398,925,956,128/81,023,513.31
  6. Step 6: Final answer
    x = 60,518,221.51

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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.