Home / 18,569,309.40-27,853,964.10-12,900,605.40

Finding the Fourth Proportional to 18,569,309.40, 27,853,964.10 and 12,900,605.40

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Solution

The fourth proportional to 18,569,309.40, 27,853,964.10 and 12,900,605.40 is: 19,350,908.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,569,309.40 : 27,853,964.10 = 12,900,605.40 : x
  2. Step 2: Convert to fraction form
    18,569,309.40/27,853,964.10 = 12,900,605.40/x
  3. Step 3: Cross multiply
    18,569,309.40x = 27,853,964.10 × 12,900,605.40
  4. Step 4: Simplify right side
    18,569,309.40x = 359,332,999,679,866.19
  5. Step 5: Solve for x
    x = 359,332,999,679,866.19/18,569,309.40
  6. Step 6: Final answer
    x = 19,350,908.10

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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.