Home / 28,109,266,003.40-42,162,414,016.08-9,220,065,519.92

Finding the Fourth Proportional to 28,109,266,003.40, 42,162,414,016.08 and 9,220,065,519.92

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Solution

The fourth proportional to 28,109,266,003.40, 42,162,414,016.08 and 9,220,065,519.92 is: 13,829,611,191.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,109,266,003.40 : 42,162,414,016.08 = 9,220,065,519.92 : x
  2. Step 2: Convert to fraction form
    28,109,266,003.40/42,162,414,016.08 = 9,220,065,519.92/x
  3. Step 3: Cross multiply
    28,109,266,003.40x = 42,162,414,016.08 × 9,220,065,519.92
  4. Step 4: Simplify right side
    28,109,266,003.40x = 388,740,219,706,250,952,704
  5. Step 5: Solve for x
    x = 388,740,219,706,250,952,704/28,109,266,003.40
  6. Step 6: Final answer
    x = 13,829,611,191.53

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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.