Home / 15,443,914.18-21,312,543.09-8,474,708.35

Finding the Fourth Proportional to 15,443,914.18, 21,312,543.09 and 8,474,708.35

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Solution

The fourth proportional to 15,443,914.18, 21,312,543.09 and 8,474,708.35 is: 11,695,065.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,443,914.18 : 21,312,543.09 = 8,474,708.35 : x
  2. Step 2: Convert to fraction form
    15,443,914.18/21,312,543.09 = 8,474,708.35/x
  3. Step 3: Cross multiply
    15,443,914.18x = 21,312,543.09 × 8,474,708.35
  4. Step 4: Simplify right side
    15,443,914.18x = 180,617,586,884,557.78
  5. Step 5: Solve for x
    x = 180,617,586,884,557.78/15,443,914.18
  6. Step 6: Final answer
    x = 11,695,065.43

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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.