Home / 28,078,888.52-42,113,005.68-13,687,482.44

Finding the Fourth Proportional to 28,078,888.52, 42,113,005.68 and 13,687,482.44

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Solution

The fourth proportional to 28,078,888.52, 42,113,005.68 and 13,687,482.44 is: 20,528,626.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,078,888.52 : 42,113,005.68 = 13,687,482.44 : x
  2. Step 2: Convert to fraction form
    28,078,888.52/42,113,005.68 = 13,687,482.44/x
  3. Step 3: Cross multiply
    28,078,888.52x = 42,113,005.68 × 13,687,482.44
  4. Step 4: Simplify right side
    28,078,888.52x = 576,421,025,740,620.25
  5. Step 5: Solve for x
    x = 576,421,025,740,620.25/28,078,888.52
  6. Step 6: Final answer
    x = 20,528,626.88

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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.