Home / 40,107,530.25-55,349,064.87-21,772,815.75

Finding the Fourth Proportional to 40,107,530.25, 55,349,064.87 and 21,772,815.75

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Solution

The fourth proportional to 40,107,530.25, 55,349,064.87 and 21,772,815.75 is: 30,046,851.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,107,530.25 : 55,349,064.87 = 21,772,815.75 : x
  2. Step 2: Convert to fraction form
    40,107,530.25/55,349,064.87 = 21,772,815.75/x
  3. Step 3: Cross multiply
    40,107,530.25x = 55,349,064.87 × 21,772,815.75
  4. Step 4: Simplify right side
    40,107,530.25x = 1,205,104,991,349,307.75
  5. Step 5: Solve for x
    x = 1,205,104,991,349,307.75/40,107,530.25
  6. Step 6: Final answer
    x = 30,046,851.15

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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.