Home / 74,380,428.90-111,244,304.88-66,240,474.84

Finding the Fourth Proportional to 74,380,428.90, 111,244,304.88 and 66,240,474.84

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Solution

The fourth proportional to 74,380,428.90, 111,244,304.88 and 66,240,474.84 is: 99,070,087.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,380,428.90 : 111,244,304.88 = 66,240,474.84 : x
  2. Step 2: Convert to fraction form
    74,380,428.90/111,244,304.88 = 66,240,474.84/x
  3. Step 3: Cross multiply
    74,380,428.90x = 111,244,304.88 × 66,240,474.84
  4. Step 4: Simplify right side
    74,380,428.90x = 7,368,875,578,496,929
  5. Step 5: Solve for x
    x = 7,368,875,578,496,929/74,380,428.90
  6. Step 6: Final answer
    x = 99,070,087.22

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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.