Home / 213,069,618.25-318,681,146.85-125,422,252.81

Finding the Fourth Proportional to 213,069,618.25, 318,681,146.85 and 125,422,252.81

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Solution

The fourth proportional to 213,069,618.25, 318,681,146.85 and 125,422,252.81 is: 187,589,895.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,069,618.25 : 318,681,146.85 = 125,422,252.81 : x
  2. Step 2: Convert to fraction form
    213,069,618.25/318,681,146.85 = 125,422,252.81/x
  3. Step 3: Cross multiply
    213,069,618.25x = 318,681,146.85 × 125,422,252.81
  4. Step 4: Simplify right side
    213,069,618.25x = 39,969,707,366,001,440
  5. Step 5: Solve for x
    x = 39,969,707,366,001,440/213,069,618.25
  6. Step 6: Final answer
    x = 187,589,895.24

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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.