Home / 20,400,069.16-28,152,599.96-11,108,148.52

Finding the Fourth Proportional to 20,400,069.16, 28,152,599.96 and 11,108,148.52

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Solution

The fourth proportional to 20,400,069.16, 28,152,599.96 and 11,108,148.52 is: 15,329,519.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,400,069.16 : 28,152,599.96 = 11,108,148.52 : x
  2. Step 2: Convert to fraction form
    20,400,069.16/28,152,599.96 = 11,108,148.52/x
  3. Step 3: Cross multiply
    20,400,069.16x = 28,152,599.96 × 11,108,148.52
  4. Step 4: Simplify right side
    20,400,069.16x = 312,723,261,579,826.06
  5. Step 5: Solve for x
    x = 312,723,261,579,826.06/20,400,069.16
  6. Step 6: Final answer
    x = 15,329,519.68

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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.