Home / 20,515,277.10-30,772,915.65-8,546,457.90

Finding the Fourth Proportional to 20,515,277.10, 30,772,915.65 and 8,546,457.90

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Solution

The fourth proportional to 20,515,277.10, 30,772,915.65 and 8,546,457.90 is: 12,819,686.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,515,277.10 : 30,772,915.65 = 8,546,457.90 : x
  2. Step 2: Convert to fraction form
    20,515,277.10/30,772,915.65 = 8,546,457.90/x
  3. Step 3: Cross multiply
    20,515,277.10x = 30,772,915.65 × 8,546,457.90
  4. Step 4: Simplify right side
    20,515,277.10x = 262,999,428,062,976.12
  5. Step 5: Solve for x
    x = 262,999,428,062,976.12/20,515,277.10
  6. Step 6: Final answer
    x = 12,819,686.85

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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.