Home / 6,912,001.70-10,368,002.55-5,120,411.30

Finding the Fourth Proportional to 6,912,001.70, 10,368,002.55 and 5,120,411.30

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Solution

The fourth proportional to 6,912,001.70, 10,368,002.55 and 5,120,411.30 is: 7,680,616.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912,001.70 : 10,368,002.55 = 5,120,411.30 : x
  2. Step 2: Convert to fraction form
    6,912,001.70/10,368,002.55 = 5,120,411.30/x
  3. Step 3: Cross multiply
    6,912,001.70x = 10,368,002.55 × 5,120,411.30
  4. Step 4: Simplify right side
    6,912,001.70x = 53,088,437,415,448.82
  5. Step 5: Solve for x
    x = 53,088,437,415,448.82/6,912,001.70
  6. Step 6: Final answer
    x = 7,680,616.95

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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.