Home / 54,328,609-74,984,130.66-31,139,278.60

Finding the Fourth Proportional to 54,328,609, 74,984,130.66 and 31,139,278.60

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Solution

The fourth proportional to 54,328,609, 74,984,130.66 and 31,139,278.60 is: 42,978,308.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,328,609 : 74,984,130.66 = 31,139,278.60 : x
  2. Step 2: Convert to fraction form
    54,328,609/74,984,130.66 = 31,139,278.60/x
  3. Step 3: Cross multiply
    54,328,609x = 74,984,130.66 × 31,139,278.60
  4. Step 4: Simplify right side
    54,328,609x = 2,334,951,735,200,542
  5. Step 5: Solve for x
    x = 2,334,951,735,200,542/54,328,609
  6. Step 6: Final answer
    x = 42,978,308.82

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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.