Home / 12,186,257.23-18,170,437.57-11,851,449.40

Finding the Fourth Proportional to 12,186,257.23, 18,170,437.57 and 11,851,449.40

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Solution

The fourth proportional to 12,186,257.23, 18,170,437.57 and 11,851,449.40 is: 17,671,219.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,186,257.23 : 18,170,437.57 = 11,851,449.40 : x
  2. Step 2: Convert to fraction form
    12,186,257.23/18,170,437.57 = 11,851,449.40/x
  3. Step 3: Cross multiply
    12,186,257.23x = 18,170,437.57 × 11,851,449.40
  4. Step 4: Simplify right side
    12,186,257.23x = 215,346,021,466,342.59
  5. Step 5: Solve for x
    x = 215,346,021,466,342.59/12,186,257.23
  6. Step 6: Final answer
    x = 17,671,219.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.