Home / 28,977,307.40-43,416,194.70-18,874,728.20

Finding the Fourth Proportional to 28,977,307.40, 43,416,194.70 and 18,874,728.20

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Solution

The fourth proportional to 28,977,307.40, 43,416,194.70 and 18,874,728.20 is: 28,279,676.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,977,307.40 : 43,416,194.70 = 18,874,728.20 : x
  2. Step 2: Convert to fraction form
    28,977,307.40/43,416,194.70 = 18,874,728.20/x
  3. Step 3: Cross multiply
    28,977,307.40x = 43,416,194.70 × 18,874,728.20
  4. Step 4: Simplify right side
    28,977,307.40x = 819,468,874,440,780.62
  5. Step 5: Solve for x
    x = 819,468,874,440,780.62/28,977,307.40
  6. Step 6: Final answer
    x = 28,279,676.34

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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.