Home / 20,400,070.16-28,152,601.34-11,108,149.52

Finding the Fourth Proportional to 20,400,070.16, 28,152,601.34 and 11,108,149.52

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Solution

The fourth proportional to 20,400,070.16, 28,152,601.34 and 11,108,149.52 is: 15,329,521.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,400,070.16 : 28,152,601.34 = 11,108,149.52 : x
  2. Step 2: Convert to fraction form
    20,400,070.16/28,152,601.34 = 11,108,149.52/x
  3. Step 3: Cross multiply
    20,400,070.16x = 28,152,601.34 × 11,108,149.52
  4. Step 4: Simplify right side
    20,400,070.16x = 312,723,305,061,672.31
  5. Step 5: Solve for x
    x = 312,723,305,061,672.31/20,400,070.16
  6. Step 6: Final answer
    x = 15,329,521.06

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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.