Home / 20,213,278.80-30,330,415.80-8,854,875.60

Finding the Fourth Proportional to 20,213,278.80, 30,330,415.80 and 8,854,875.60

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Solution

The fourth proportional to 20,213,278.80, 30,330,415.80 and 8,854,875.60 is: 13,286,912.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213,278.80 : 30,330,415.80 = 8,854,875.60 : x
  2. Step 2: Convert to fraction form
    20,213,278.80/30,330,415.80 = 8,854,875.60/x
  3. Step 3: Cross multiply
    20,213,278.80x = 30,330,415.80 × 8,854,875.60
  4. Step 4: Simplify right side
    20,213,278.80x = 268,572,058,805,274.47
  5. Step 5: Solve for x
    x = 268,572,058,805,274.47/20,213,278.80
  6. Step 6: Final answer
    x = 13,286,912.11

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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.