Home / 7,388,712.86-10,190,812.38-6,357,947.90

Finding the Fourth Proportional to 7,388,712.86, 10,190,812.38 and 6,357,947.90

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Solution

The fourth proportional to 7,388,712.86, 10,190,812.38 and 6,357,947.90 is: 8,769,139.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,388,712.86 : 10,190,812.38 = 6,357,947.90 : x
  2. Step 2: Convert to fraction form
    7,388,712.86/10,190,812.38 = 6,357,947.90/x
  3. Step 3: Cross multiply
    7,388,712.86x = 10,190,812.38 × 6,357,947.90
  4. Step 4: Simplify right side
    7,388,712.86x = 64,792,654,170,715.01
  5. Step 5: Solve for x
    x = 64,792,654,170,715.01/7,388,712.86
  6. Step 6: Final answer
    x = 8,769,139.55

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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.