Home / 8,438,655.72-11,642,981.90-5,299,257.72

Finding the Fourth Proportional to 8,438,655.72, 11,642,981.90 and 5,299,257.72

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Solution

The fourth proportional to 8,438,655.72, 11,642,981.90 and 5,299,257.72 is: 7,311,491.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,438,655.72 : 11,642,981.90 = 5,299,257.72 : x
  2. Step 2: Convert to fraction form
    8,438,655.72/11,642,981.90 = 5,299,257.72/x
  3. Step 3: Cross multiply
    8,438,655.72x = 11,642,981.90 × 5,299,257.72
  4. Step 4: Simplify right side
    8,438,655.72x = 61,699,161,717,395.27
  5. Step 5: Solve for x
    x = 61,699,161,717,395.27/8,438,655.72
  6. Step 6: Final answer
    x = 7,311,491.75

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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.