Home / 40,011,873.68-55,216,650.75-21,677,159.18

Finding the Fourth Proportional to 40,011,873.68, 55,216,650.75 and 21,677,159.18

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Solution

The fourth proportional to 40,011,873.68, 55,216,650.75 and 21,677,159.18 is: 29,914,623.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,011,873.68 : 55,216,650.75 = 21,677,159.18 : x
  2. Step 2: Convert to fraction form
    40,011,873.68/55,216,650.75 = 21,677,159.18/x
  3. Step 3: Cross multiply
    40,011,873.68x = 55,216,650.75 × 21,677,159.18
  4. Step 4: Simplify right side
    40,011,873.68x = 1,196,940,127,750,968.75
  5. Step 5: Solve for x
    x = 1,196,940,127,750,968.75/40,011,873.68
  6. Step 6: Final answer
    x = 29,914,623.28

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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.