Home / 7,815,874.32-10,786,504.93-4,917,749.40

Finding the Fourth Proportional to 7,815,874.32, 10,786,504.93 and 4,917,749.40

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Solution

The fourth proportional to 7,815,874.32, 10,786,504.93 and 4,917,749.40 is: 6,786,870.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,815,874.32 : 10,786,504.93 = 4,917,749.40 : x
  2. Step 2: Convert to fraction form
    7,815,874.32/10,786,504.93 = 4,917,749.40/x
  3. Step 3: Cross multiply
    7,815,874.32x = 10,786,504.93 × 4,917,749.40
  4. Step 4: Simplify right side
    7,815,874.32x = 53,045,328,135,310.17
  5. Step 5: Solve for x
    x = 53,045,328,135,310.17/7,815,874.32
  6. Step 6: Final answer
    x = 6,786,870.66

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.