Home / 15,340,398.30-21,152,583.72-12,540,783.56

Finding the Fourth Proportional to 15,340,398.30, 21,152,583.72 and 12,540,783.56

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Solution

The fourth proportional to 15,340,398.30, 21,152,583.72 and 12,540,783.56 is: 17,292,248.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,340,398.30 : 21,152,583.72 = 12,540,783.56 : x
  2. Step 2: Convert to fraction form
    15,340,398.30/21,152,583.72 = 12,540,783.56/x
  3. Step 3: Cross multiply
    15,340,398.30x = 21,152,583.72 × 12,540,783.56
  4. Step 4: Simplify right side
    15,340,398.30x = 265,269,974,061,536.72
  5. Step 5: Solve for x
    x = 265,269,974,061,536.72/15,340,398.30
  6. Step 6: Final answer
    x = 17,292,248.15

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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.