Home / 28,238,470.70-42,352,830.93-7,489,052.78

Finding the Fourth Proportional to 28,238,470.70, 42,352,830.93 and 7,489,052.78

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Solution

The fourth proportional to 28,238,470.70, 42,352,830.93 and 7,489,052.78 is: 11,232,286.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,238,470.70 : 42,352,830.93 = 7,489,052.78 : x
  2. Step 2: Convert to fraction form
    28,238,470.70/42,352,830.93 = 7,489,052.78/x
  3. Step 3: Cross multiply
    28,238,470.70x = 42,352,830.93 × 7,489,052.78
  4. Step 4: Simplify right side
    28,238,470.70x = 317,182,586,217,186.50
  5. Step 5: Solve for x
    x = 317,182,586,217,186.50/28,238,470.70
  6. Step 6: Final answer
    x = 11,232,286.25

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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.