Home / 90,810,968.75-125,319,103.92-49,557,861.13

Finding the Fourth Proportional to 90,810,968.75, 125,319,103.92 and 49,557,861.13

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Solution

The fourth proportional to 90,810,968.75, 125,319,103.92 and 49,557,861.13 is: 68,389,830.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,810,968.75 : 125,319,103.92 = 49,557,861.13 : x
  2. Step 2: Convert to fraction form
    90,810,968.75/125,319,103.92 = 49,557,861.13/x
  3. Step 3: Cross multiply
    90,810,968.75x = 125,319,103.92 × 49,557,861.13
  4. Step 4: Simplify right side
    90,810,968.75x = 6,210,546,748,376,803
  5. Step 5: Solve for x
    x = 6,210,546,748,376,803/90,810,968.75
  6. Step 6: Final answer
    x = 68,389,830.37

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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.