Home / 28,134,643.20-42,201,506.88-8,965,141.44

Finding the Fourth Proportional to 28,134,643.20, 42,201,506.88 and 8,965,141.44

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Solution

The fourth proportional to 28,134,643.20, 42,201,506.88 and 8,965,141.44 is: 13,447,566.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,134,643.20 : 42,201,506.88 = 8,965,141.44 : x
  2. Step 2: Convert to fraction form
    28,134,643.20/42,201,506.88 = 8,965,141.44/x
  3. Step 3: Cross multiply
    28,134,643.20x = 42,201,506.88 × 8,965,141.44
  4. Step 4: Simplify right side
    28,134,643.20x = 378,342,478,160,333.12
  5. Step 5: Solve for x
    x = 378,342,478,160,333.12/28,134,643.20
  6. Step 6: Final answer
    x = 13,447,566.24

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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.