Home / 20,429,344.83-28,192,686.04-11,262,315.63

Finding the Fourth Proportional to 20,429,344.83, 28,192,686.04 and 11,262,315.63

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Solution

The fourth proportional to 20,429,344.83, 28,192,686.04 and 11,262,315.63 is: 15,542,100.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,429,344.83 : 28,192,686.04 = 11,262,315.63 : x
  2. Step 2: Convert to fraction form
    20,429,344.83/28,192,686.04 = 11,262,315.63/x
  3. Step 3: Cross multiply
    20,429,344.83x = 28,192,686.04 × 11,262,315.63
  4. Step 4: Simplify right side
    20,429,344.83x = 317,514,928,583,663.25
  5. Step 5: Solve for x
    x = 317,514,928,583,663.25/20,429,344.83
  6. Step 6: Final answer
    x = 15,542,100.41

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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.