Home / 28,006,482.20-42,009,723.30-8,839,176.80

Finding the Fourth Proportional to 28,006,482.20, 42,009,723.30 and 8,839,176.80

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Solution

The fourth proportional to 28,006,482.20, 42,009,723.30 and 8,839,176.80 is: 13,258,765.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,006,482.20 : 42,009,723.30 = 8,839,176.80 : x
  2. Step 2: Convert to fraction form
    28,006,482.20/42,009,723.30 = 8,839,176.80/x
  3. Step 3: Cross multiply
    28,006,482.20x = 42,009,723.30 × 8,839,176.80
  4. Step 4: Simplify right side
    28,006,482.20x = 371,331,371,567,779.44
  5. Step 5: Solve for x
    x = 371,331,371,567,779.44/28,006,482.20
  6. Step 6: Final answer
    x = 13,258,765.20

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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.