Home / 20,488,546.60-30,732,819.90-19,312,815.40

Finding the Fourth Proportional to 20,488,546.60, 30,732,819.90 and 19,312,815.40

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Solution

The fourth proportional to 20,488,546.60, 30,732,819.90 and 19,312,815.40 is: 28,969,223.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,488,546.60 : 30,732,819.90 = 19,312,815.40 : x
  2. Step 2: Convert to fraction form
    20,488,546.60/30,732,819.90 = 19,312,815.40/x
  3. Step 3: Cross multiply
    20,488,546.60x = 30,732,819.90 × 19,312,815.40
  4. Step 4: Simplify right side
    20,488,546.60x = 593,537,277,450,146.38
  5. Step 5: Solve for x
    x = 593,537,277,450,146.38/20,488,546.60
  6. Step 6: Final answer
    x = 28,969,223.10

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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.