Home / 10,207,808.10-15,311,712.15-8,822,124.90

Finding the Fourth Proportional to 10,207,808.10, 15,311,712.15 and 8,822,124.90

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Solution

The fourth proportional to 10,207,808.10, 15,311,712.15 and 8,822,124.90 is: 13,233,187.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,207,808.10 : 15,311,712.15 = 8,822,124.90 : x
  2. Step 2: Convert to fraction form
    10,207,808.10/15,311,712.15 = 8,822,124.90/x
  3. Step 3: Cross multiply
    10,207,808.10x = 15,311,712.15 × 8,822,124.90
  4. Step 4: Simplify right side
    10,207,808.10x = 135,081,837,020,147.55
  5. Step 5: Solve for x
    x = 135,081,837,020,147.55/10,207,808.10
  6. Step 6: Final answer
    x = 13,233,187.35

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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.