Home / 10,317,018.38-15,455,348.40-8,497,994.78

Finding the Fourth Proportional to 10,317,018.38, 15,455,348.40 and 8,497,994.78

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Solution

The fourth proportional to 10,317,018.38, 15,455,348.40 and 8,497,994.78 is: 12,730,370.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,317,018.38 : 15,455,348.40 = 8,497,994.78 : x
  2. Step 2: Convert to fraction form
    10,317,018.38/15,455,348.40 = 8,497,994.78/x
  3. Step 3: Cross multiply
    10,317,018.38x = 15,455,348.40 × 8,497,994.78
  4. Step 4: Simplify right side
    10,317,018.38x = 131,339,470,026,281.34
  5. Step 5: Solve for x
    x = 131,339,470,026,281.34/10,317,018.38
  6. Step 6: Final answer
    x = 12,730,370.85

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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.