Home / 81,023,891.76-111,812,961.96-43,854,166.01

Finding the Fourth Proportional to 81,023,891.76, 111,812,961.96 and 43,854,166.01

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Solution

The fourth proportional to 81,023,891.76, 111,812,961.96 and 43,854,166.01 is: 60,518,744.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,023,891.76 : 111,812,961.96 = 43,854,166.01 : x
  2. Step 2: Convert to fraction form
    81,023,891.76/111,812,961.96 = 43,854,166.01/x
  3. Step 3: Cross multiply
    81,023,891.76x = 111,812,961.96 × 43,854,166.01
  4. Step 4: Simplify right side
    81,023,891.76x = 4,903,464,195,637,470
  5. Step 5: Solve for x
    x = 4,903,464,195,637,470/81,023,891.76
  6. Step 6: Final answer
    x = 60,518,744.40

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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.