Home / 12,314,039.40-18,471,059.10-7,779,076.20

Finding the Fourth Proportional to 12,314,039.40, 18,471,059.10 and 7,779,076.20

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Solution

The fourth proportional to 12,314,039.40, 18,471,059.10 and 7,779,076.20 is: 11,668,614.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,314,039.40 : 18,471,059.10 = 7,779,076.20 : x
  2. Step 2: Convert to fraction form
    12,314,039.40/18,471,059.10 = 7,779,076.20/x
  3. Step 3: Cross multiply
    12,314,039.40x = 18,471,059.10 × 7,779,076.20
  4. Step 4: Simplify right side
    12,314,039.40x = 143,687,776,233,603.44
  5. Step 5: Solve for x
    x = 143,687,776,233,603.44/12,314,039.40
  6. Step 6: Final answer
    x = 11,668,614.30

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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.