Home / 12,208,265.40-18,312,398.10-7,425,334.20

Finding the Fourth Proportional to 12,208,265.40, 18,312,398.10 and 7,425,334.20

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Solution

The fourth proportional to 12,208,265.40, 18,312,398.10 and 7,425,334.20 is: 11,138,001.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,208,265.40 : 18,312,398.10 = 7,425,334.20 : x
  2. Step 2: Convert to fraction form
    12,208,265.40/18,312,398.10 = 7,425,334.20/x
  3. Step 3: Cross multiply
    12,208,265.40x = 18,312,398.10 × 7,425,334.20
  4. Step 4: Simplify right side
    12,208,265.40x = 135,975,675,895,945.03
  5. Step 5: Solve for x
    x = 135,975,675,895,945.03/12,208,265.40
  6. Step 6: Final answer
    x = 11,138,001.30

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Similar ratio
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1.5x scale

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.