Home / 8,787,662.46-12,128,247.10-4,920,432.66

Finding the Fourth Proportional to 8,787,662.46, 12,128,247.10 and 4,920,432.66

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Solution

The fourth proportional to 8,787,662.46, 12,128,247.10 and 4,920,432.66 is: 6,790,909.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,787,662.46 : 12,128,247.10 = 4,920,432.66 : x
  2. Step 2: Convert to fraction form
    8,787,662.46/12,128,247.10 = 4,920,432.66/x
  3. Step 3: Cross multiply
    8,787,662.46x = 12,128,247.10 × 4,920,432.66
  4. Step 4: Simplify right side
    8,787,662.46x = 59,676,223,139,390.29
  5. Step 5: Solve for x
    x = 59,676,223,139,390.29/8,787,662.46
  6. Step 6: Final answer
    x = 6,790,909.80

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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.