Home / 12,718,505.60-19,077,758.40-8,687,427.20

Finding the Fourth Proportional to 12,718,505.60, 19,077,758.40 and 8,687,427.20

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Solution

The fourth proportional to 12,718,505.60, 19,077,758.40 and 8,687,427.20 is: 13,031,140.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718,505.60 : 19,077,758.40 = 8,687,427.20 : x
  2. Step 2: Convert to fraction form
    12,718,505.60/19,077,758.40 = 8,687,427.20/x
  3. Step 3: Cross multiply
    12,718,505.60x = 19,077,758.40 × 8,687,427.20
  4. Step 4: Simplify right side
    12,718,505.60x = 165,736,637,239,188.44
  5. Step 5: Solve for x
    x = 165,736,637,239,188.44/12,718,505.60
  6. Step 6: Final answer
    x = 13,031,140.80

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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.