Home / 18,290,648.61-25,248,196.13-13,720,265.73

Finding the Fourth Proportional to 18,290,648.61, 25,248,196.13 and 13,720,265.73

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Solution

The fourth proportional to 18,290,648.61, 25,248,196.13 and 13,720,265.73 is: 18,939,293.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,290,648.61 : 25,248,196.13 = 13,720,265.73 : x
  2. Step 2: Convert to fraction form
    18,290,648.61/25,248,196.13 = 13,720,265.73/x
  3. Step 3: Cross multiply
    18,290,648.61x = 25,248,196.13 × 13,720,265.73
  4. Step 4: Simplify right side
    18,290,648.61x = 346,411,960,038,156.31
  5. Step 5: Solve for x
    x = 346,411,960,038,156.31/18,290,648.61
  6. Step 6: Final answer
    x = 18,939,293.37

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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.