Home / 28,836,000.80-43,254,001.20-8,638,618.40

Finding the Fourth Proportional to 28,836,000.80, 43,254,001.20 and 8,638,618.40

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Solution

The fourth proportional to 28,836,000.80, 43,254,001.20 and 8,638,618.40 is: 12,957,927.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,836,000.80 : 43,254,001.20 = 8,638,618.40 : x
  2. Step 2: Convert to fraction form
    28,836,000.80/43,254,001.20 = 8,638,618.40/x
  3. Step 3: Cross multiply
    28,836,000.80x = 43,254,001.20 × 8,638,618.40
  4. Step 4: Simplify right side
    28,836,000.80x = 373,654,810,639,942.12
  5. Step 5: Solve for x
    x = 373,654,810,639,942.12/28,836,000.80
  6. Step 6: Final answer
    x = 12,957,927.60

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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.