Home / 28,509,381.40-42,764,072.10-28,084,228.60

Finding the Fourth Proportional to 28,509,381.40, 42,764,072.10 and 28,084,228.60

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Solution

The fourth proportional to 28,509,381.40, 42,764,072.10 and 28,084,228.60 is: 42,126,342.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,509,381.40 : 42,764,072.10 = 28,084,228.60 : x
  2. Step 2: Convert to fraction form
    28,509,381.40/42,764,072.10 = 28,084,228.60/x
  3. Step 3: Cross multiply
    28,509,381.40x = 42,764,072.10 × 28,084,228.60
  4. Step 4: Simplify right side
    28,509,381.40x = 1,200,995,976,723,282.25
  5. Step 5: Solve for x
    x = 1,200,995,976,723,282.25/28,509,381.40
  6. Step 6: Final answer
    x = 42,126,342.90

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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.