Home / 12,312,000.10-18,468,000.15-8,280,921.70

Finding the Fourth Proportional to 12,312,000.10, 18,468,000.15 and 8,280,921.70

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Solution

The fourth proportional to 12,312,000.10, 18,468,000.15 and 8,280,921.70 is: 12,421,382.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,312,000.10 : 18,468,000.15 = 8,280,921.70 : x
  2. Step 2: Convert to fraction form
    12,312,000.10/18,468,000.15 = 8,280,921.70/x
  3. Step 3: Cross multiply
    12,312,000.10x = 18,468,000.15 × 8,280,921.70
  4. Step 4: Simplify right side
    12,312,000.10x = 152,932,063,197,738.25
  5. Step 5: Solve for x
    x = 152,932,063,197,738.25/12,312,000.10
  6. Step 6: Final answer
    x = 12,421,382.55

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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.