Home / 12,142,572.20-18,185,864.70-11,862,636.20

Finding the Fourth Proportional to 12,142,572.20, 18,185,864.70 and 11,862,636.20

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Solution

The fourth proportional to 12,142,572.20, 18,185,864.70 and 11,862,636.20 is: 17,766,606.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,142,572.20 : 18,185,864.70 = 11,862,636.20 : x
  2. Step 2: Convert to fraction form
    12,142,572.20/18,185,864.70 = 11,862,636.20/x
  3. Step 3: Cross multiply
    12,142,572.20x = 18,185,864.70 × 11,862,636.20
  4. Step 4: Simplify right side
    12,142,572.20x = 215,732,296,918,522.12
  5. Step 5: Solve for x
    x = 215,732,296,918,522.12/12,142,572.20
  6. Step 6: Final answer
    x = 17,766,606.07

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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.