Home / 42,120,003.20-58,134,584.64-28,907,254.40

Finding the Fourth Proportional to 42,120,003.20, 58,134,584.64 and 28,907,254.40

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Solution

The fourth proportional to 42,120,003.20, 58,134,584.64 and 28,907,254.40 is: 39,898,174.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,120,003.20 : 58,134,584.64 = 28,907,254.40 : x
  2. Step 2: Convert to fraction form
    42,120,003.20/58,134,584.64 = 28,907,254.40/x
  3. Step 3: Cross multiply
    42,120,003.20x = 58,134,584.64 × 28,907,254.40
  4. Step 4: Simplify right side
    42,120,003.20x = 1,680,511,227,626,812.25
  5. Step 5: Solve for x
    x = 1,680,511,227,626,812.25/42,120,003.20
  6. Step 6: Final answer
    x = 39,898,174.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.