Home / 56,853,627.10-78,458,005.49-30,748,144.79

Finding the Fourth Proportional to 56,853,627.10, 78,458,005.49 and 30,748,144.79

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Solution

The fourth proportional to 56,853,627.10, 78,458,005.49 and 30,748,144.79 is: 42,432,439.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,853,627.10 : 78,458,005.49 = 30,748,144.79 : x
  2. Step 2: Convert to fraction form
    56,853,627.10/78,458,005.49 = 30,748,144.79/x
  3. Step 3: Cross multiply
    56,853,627.10x = 78,458,005.49 × 30,748,144.79
  4. Step 4: Simplify right side
    56,853,627.10x = 2,412,438,112,783,539
  5. Step 5: Solve for x
    x = 2,412,438,112,783,539/56,853,627.10
  6. Step 6: Final answer
    x = 42,432,439.86

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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.