Home / 5,120,125.83-7,680,186.32-1,525,801.05

Finding the Fourth Proportional to 5,120,125.83, 7,680,186.32 and 1,525,801.05

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Solution

The fourth proportional to 5,120,125.83, 7,680,186.32 and 1,525,801.05 is: 2,288,700.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,120,125.83 : 7,680,186.32 = 1,525,801.05 : x
  2. Step 2: Convert to fraction form
    5,120,125.83/7,680,186.32 = 1,525,801.05/x
  3. Step 3: Cross multiply
    5,120,125.83x = 7,680,186.32 × 1,525,801.05
  4. Step 4: Simplify right side
    5,120,125.83x = 11,718,436,343,622.63
  5. Step 5: Solve for x
    x = 11,718,436,343,622.63/5,120,125.83
  6. Step 6: Final answer
    x = 2,288,700.85

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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.