Home / 18,428,898.03-27,643,359.20-7,643,302.80

Finding the Fourth Proportional to 18,428,898.03, 27,643,359.20 and 7,643,302.80

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Solution

The fourth proportional to 18,428,898.03, 27,643,359.20 and 7,643,302.80 is: 11,464,959.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,428,898.03 : 27,643,359.20 = 7,643,302.80 : x
  2. Step 2: Convert to fraction form
    18,428,898.03/27,643,359.20 = 7,643,302.80/x
  3. Step 3: Cross multiply
    18,428,898.03x = 27,643,359.20 × 7,643,302.80
  4. Step 4: Simplify right side
    18,428,898.03x = 211,286,564,736,549.25
  5. Step 5: Solve for x
    x = 211,286,564,736,549.25/18,428,898.03
  6. Step 6: Final answer
    x = 11,464,959.24

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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.