Home / 65,988,993.84-91,055,515.80-39,521,144.88

Finding the Fourth Proportional to 65,988,993.84, 91,055,515.80 and 39,521,144.88

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Solution

The fourth proportional to 65,988,993.84, 91,055,515.80 and 39,521,144.88 is: 54,533,612.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,988,993.84 : 91,055,515.80 = 39,521,144.88 : x
  2. Step 2: Convert to fraction form
    65,988,993.84/91,055,515.80 = 39,521,144.88/x
  3. Step 3: Cross multiply
    65,988,993.84x = 91,055,515.80 × 39,521,144.88
  4. Step 4: Simplify right side
    65,988,993.84x = 3,598,618,232,054,929
  5. Step 5: Solve for x
    x = 3,598,618,232,054,929/65,988,993.84
  6. Step 6: Final answer
    x = 54,533,612.69

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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.