Home / 20,996,853.75-31,507,680.93-8,865,531.96

Finding the Fourth Proportional to 20,996,853.75, 31,507,680.93 and 8,865,531.96

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Solution

The fourth proportional to 20,996,853.75, 31,507,680.93 and 8,865,531.96 is: 13,303,533.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,996,853.75 : 31,507,680.93 = 8,865,531.96 : x
  2. Step 2: Convert to fraction form
    20,996,853.75/31,507,680.93 = 8,865,531.96/x
  3. Step 3: Cross multiply
    20,996,853.75x = 31,507,680.93 × 8,865,531.96
  4. Step 4: Simplify right side
    20,996,853.75x = 279,332,352,270,397.56
  5. Step 5: Solve for x
    x = 279,332,352,270,397.56/20,996,853.75
  6. Step 6: Final answer
    x = 13,303,533.74

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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.