Home / 15,197,281.65-20,972,213.64-8,321,703.57

Finding the Fourth Proportional to 15,197,281.65, 20,972,213.64 and 8,321,703.57

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Solution

The fourth proportional to 15,197,281.65, 20,972,213.64 and 8,321,703.57 is: 11,483,931.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,197,281.65 : 20,972,213.64 = 8,321,703.57 : x
  2. Step 2: Convert to fraction form
    15,197,281.65/20,972,213.64 = 8,321,703.57/x
  3. Step 3: Cross multiply
    15,197,281.65x = 20,972,213.64 × 8,321,703.57
  4. Step 4: Simplify right side
    15,197,281.65x = 174,524,545,118,790.72
  5. Step 5: Solve for x
    x = 174,524,545,118,790.72/15,197,281.65
  6. Step 6: Final answer
    x = 11,483,931.74

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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.