Home / 20,612,701.80-30,919,052.70-7,149,529.80

Finding the Fourth Proportional to 20,612,701.80, 30,919,052.70 and 7,149,529.80

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Solution

The fourth proportional to 20,612,701.80, 30,919,052.70 and 7,149,529.80 is: 10,724,294.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,612,701.80 : 30,919,052.70 = 7,149,529.80 : x
  2. Step 2: Convert to fraction form
    20,612,701.80/30,919,052.70 = 7,149,529.80/x
  3. Step 3: Cross multiply
    20,612,701.80x = 30,919,052.70 × 7,149,529.80
  4. Step 4: Simplify right side
    20,612,701.80x = 221,056,688,666,420.44
  5. Step 5: Solve for x
    x = 221,056,688,666,420.44/20,612,701.80
  6. Step 6: Final answer
    x = 10,724,294.70

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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.