Home / 18,674,436.80-27,996,103.20-7,900,011.20

Finding the Fourth Proportional to 18,674,436.80, 27,996,103.20 and 7,900,011.20

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Solution

The fourth proportional to 18,674,436.80, 27,996,103.20 and 7,900,011.20 is: 11,843,437.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,674,436.80 : 27,996,103.20 = 7,900,011.20 : x
  2. Step 2: Convert to fraction form
    18,674,436.80/27,996,103.20 = 7,900,011.20/x
  3. Step 3: Cross multiply
    18,674,436.80x = 27,996,103.20 × 7,900,011.20
  4. Step 4: Simplify right side
    18,674,436.80x = 221,169,528,836,355.84
  5. Step 5: Solve for x
    x = 221,169,528,836,355.84/18,674,436.80
  6. Step 6: Final answer
    x = 11,843,437.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.