Home / 18,442,047.11-25,426,362.25-15,122,108.21

Finding the Fourth Proportional to 18,442,047.11, 25,426,362.25 and 15,122,108.21

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Solution

The fourth proportional to 18,442,047.11, 25,426,362.25 and 15,122,108.21 is: 20,849,106.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,442,047.11 : 25,426,362.25 = 15,122,108.21 : x
  2. Step 2: Convert to fraction form
    18,442,047.11/25,426,362.25 = 15,122,108.21/x
  3. Step 3: Cross multiply
    18,442,047.11x = 25,426,362.25 × 15,122,108.21
  4. Step 4: Simplify right side
    18,442,047.11x = 384,500,201,331,159.12
  5. Step 5: Solve for x
    x = 384,500,201,331,159.12/18,442,047.11
  6. Step 6: Final answer
    x = 20,849,106.34

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.