Home / 15,156,492.32-20,915,712.24-8,280,826.40

Finding the Fourth Proportional to 15,156,492.32, 20,915,712.24 and 8,280,826.40

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Solution

The fourth proportional to 15,156,492.32, 20,915,712.24 and 8,280,826.40 is: 11,427,405.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,156,492.32 : 20,915,712.24 = 8,280,826.40 : x
  2. Step 2: Convert to fraction form
    15,156,492.32/20,915,712.24 = 8,280,826.40/x
  3. Step 3: Cross multiply
    15,156,492.32x = 20,915,712.24 × 8,280,826.40
  4. Step 4: Simplify right side
    15,156,492.32x = 173,199,382,091,795.12
  5. Step 5: Solve for x
    x = 173,199,382,091,795.12/15,156,492.32
  6. Step 6: Final answer
    x = 11,427,405.39

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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.