Home / 12,108,266.20-18,153,359.70-7,314,945.40

Finding the Fourth Proportional to 12,108,266.20, 18,153,359.70 and 7,314,945.40

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Solution

The fourth proportional to 12,108,266.20, 18,153,359.70 and 7,314,945.40 is: 10,966,957.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,108,266.20 : 18,153,359.70 = 7,314,945.40 : x
  2. Step 2: Convert to fraction form
    12,108,266.20/18,153,359.70 = 7,314,945.40/x
  3. Step 3: Cross multiply
    12,108,266.20x = 18,153,359.70 × 7,314,945.40
  4. Step 4: Simplify right side
    12,108,266.20x = 132,790,835,032,060.38
  5. Step 5: Solve for x
    x = 132,790,835,032,060.38/12,108,266.20
  6. Step 6: Final answer
    x = 10,966,957.02

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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.