Home / 20,777,077.80-31,165,616.70-13,124,327.40

Finding the Fourth Proportional to 20,777,077.80, 31,165,616.70 and 13,124,327.40

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Solution

The fourth proportional to 20,777,077.80, 31,165,616.70 and 13,124,327.40 is: 19,686,491.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,777,077.80 : 31,165,616.70 = 13,124,327.40 : x
  2. Step 2: Convert to fraction form
    20,777,077.80/31,165,616.70 = 13,124,327.40/x
  3. Step 3: Cross multiply
    20,777,077.80x = 31,165,616.70 × 13,124,327.40
  4. Step 4: Simplify right side
    20,777,077.80x = 409,027,757,193,707.56
  5. Step 5: Solve for x
    x = 409,027,757,193,707.56/20,777,077.80
  6. Step 6: Final answer
    x = 19,686,491.10

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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.