Home / 20,312,633.85-28,031,430.10-11,610,993.79

Finding the Fourth Proportional to 20,312,633.85, 28,031,430.10 and 11,610,993.79

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Solution

The fourth proportional to 20,312,633.85, 28,031,430.10 and 11,610,993.79 is: 16,023,168.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,312,633.85 : 28,031,430.10 = 11,610,993.79 : x
  2. Step 2: Convert to fraction form
    20,312,633.85/28,031,430.10 = 11,610,993.79/x
  3. Step 3: Cross multiply
    20,312,633.85x = 28,031,430.10 × 11,610,993.79
  4. Step 4: Simplify right side
    20,312,633.85x = 325,472,760,815,919.06
  5. Step 5: Solve for x
    x = 325,472,760,815,919.06/20,312,633.85
  6. Step 6: Final answer
    x = 16,023,168.79

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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.