Home / 28,003,867.20-42,000,616.80-7,804,929.60

Finding the Fourth Proportional to 28,003,867.20, 42,000,616.80 and 7,804,929.60

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Solution

The fourth proportional to 28,003,867.20, 42,000,616.80 and 7,804,929.60 is: 11,705,949.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,003,867.20 : 42,000,616.80 = 7,804,929.60 : x
  2. Step 2: Convert to fraction form
    28,003,867.20/42,000,616.80 = 7,804,929.60/x
  3. Step 3: Cross multiply
    28,003,867.20x = 42,000,616.80 × 7,804,929.60
  4. Step 4: Simplify right side
    28,003,867.20x = 327,811,857,280,577.25
  5. Step 5: Solve for x
    x = 327,811,857,280,577.25/28,003,867.20
  6. Step 6: Final answer
    x = 11,705,949.57

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1.5x scale

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.