Home / 15,118,179.86-20,862,487.16-8,925,221.48

Finding the Fourth Proportional to 15,118,179.86, 20,862,487.16 and 8,925,221.48

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Solution

The fourth proportional to 15,118,179.86, 20,862,487.16 and 8,925,221.48 is: 12,316,450.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,118,179.86 : 20,862,487.16 = 8,925,221.48 : x
  2. Step 2: Convert to fraction form
    15,118,179.86/20,862,487.16 = 8,925,221.48/x
  3. Step 3: Cross multiply
    15,118,179.86x = 20,862,487.16 × 8,925,221.48
  4. Step 4: Simplify right side
    15,118,179.86x = 186,202,318,526,656.22
  5. Step 5: Solve for x
    x = 186,202,318,526,656.22/15,118,179.86
  6. Step 6: Final answer
    x = 12,316,450.81

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1.5x scale

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.