Home / 5,186,490.74-7,780,610.90-2,155,483.70

Finding the Fourth Proportional to 5,186,490.74, 7,780,610.90 and 2,155,483.70

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Solution

The fourth proportional to 5,186,490.74, 7,780,610.90 and 2,155,483.70 is: 3,233,589.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,186,490.74 : 7,780,610.90 = 2,155,483.70 : x
  2. Step 2: Convert to fraction form
    5,186,490.74/7,780,610.90 = 2,155,483.70/x
  3. Step 3: Cross multiply
    5,186,490.74x = 7,780,610.90 × 2,155,483.70
  4. Step 4: Simplify right side
    5,186,490.74x = 16,770,979,937,477.98
  5. Step 5: Solve for x
    x = 16,770,979,937,477.98/5,186,490.74
  6. Step 6: Final answer
    x = 3,233,589.11

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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.