Home / 31,485,554.60-47,228,331.90-20,736,012.20

Finding the Fourth Proportional to 31,485,554.60, 47,228,331.90 and 20,736,012.20

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Solution

The fourth proportional to 31,485,554.60, 47,228,331.90 and 20,736,012.20 is: 31,104,018.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,485,554.60 : 47,228,331.90 = 20,736,012.20 : x
  2. Step 2: Convert to fraction form
    31,485,554.60/47,228,331.90 = 20,736,012.20/x
  3. Step 3: Cross multiply
    31,485,554.60x = 47,228,331.90 × 20,736,012.20
  4. Step 4: Simplify right side
    31,485,554.60x = 979,327,266,464,049.12
  5. Step 5: Solve for x
    x = 979,327,266,464,049.12/31,485,554.60
  6. Step 6: Final answer
    x = 31,104,018.30

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Double scale
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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.