Home / 66,054,101.51-91,149,326.59-38,178,617.49

Finding the Fourth Proportional to 66,054,101.51, 91,149,326.59 and 38,178,617.49

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Solution

The fourth proportional to 66,054,101.51, 91,149,326.59 and 38,178,617.49 is: 52,683,409.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,054,101.51 : 91,149,326.59 = 38,178,617.49 : x
  2. Step 2: Convert to fraction form
    66,054,101.51/91,149,326.59 = 38,178,617.49/x
  3. Step 3: Cross multiply
    66,054,101.51x = 91,149,326.59 × 38,178,617.49
  4. Step 4: Simplify right side
    66,054,101.51x = 3,479,955,274,350,696.50
  5. Step 5: Solve for x
    x = 3,479,955,274,350,696.50/66,054,101.51
  6. Step 6: Final answer
    x = 52,683,409.43

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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.