Home / 8,348,045.90-12,522,068.85-5,142,778.70

Finding the Fourth Proportional to 8,348,045.90, 12,522,068.85 and 5,142,778.70

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Solution

The fourth proportional to 8,348,045.90, 12,522,068.85 and 5,142,778.70 is: 7,714,168.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,348,045.90 : 12,522,068.85 = 5,142,778.70 : x
  2. Step 2: Convert to fraction form
    8,348,045.90/12,522,068.85 = 5,142,778.70/x
  3. Step 3: Cross multiply
    8,348,045.90x = 12,522,068.85 × 5,142,778.70
  4. Step 4: Simplify right side
    8,348,045.90x = 64,398,228,961,713.49
  5. Step 5: Solve for x
    x = 64,398,228,961,713.49/8,348,045.90
  6. Step 6: Final answer
    x = 7,714,168.05

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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.