Home / 21,340,854.56-29,453,182.80-12,171,395.36

Finding the Fourth Proportional to 21,340,854.56, 29,453,182.80 and 12,171,395.36

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Solution

The fourth proportional to 21,340,854.56, 29,453,182.80 and 12,171,395.36 is: 16,798,124.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,340,854.56 : 29,453,182.80 = 12,171,395.36 : x
  2. Step 2: Convert to fraction form
    21,340,854.56/29,453,182.80 = 12,171,395.36/x
  3. Step 3: Cross multiply
    21,340,854.56x = 29,453,182.80 × 12,171,395.36
  4. Step 4: Simplify right side
    21,340,854.56x = 358,486,332,469,151.81
  5. Step 5: Solve for x
    x = 358,486,332,469,151.81/21,340,854.56
  6. Step 6: Final answer
    x = 16,798,124.53

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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.