Home / 9,978,429.20-14,967,643.80-8,902,261.18

Finding the Fourth Proportional to 9,978,429.20, 14,967,643.80 and 8,902,261.18

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Solution

The fourth proportional to 9,978,429.20, 14,967,643.80 and 8,902,261.18 is: 13,353,391.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,978,429.20 : 14,967,643.80 = 8,902,261.18 : x
  2. Step 2: Convert to fraction form
    9,978,429.20/14,967,643.80 = 8,902,261.18/x
  3. Step 3: Cross multiply
    9,978,429.20x = 14,967,643.80 × 8,902,261.18
  4. Step 4: Simplify right side
    9,978,429.20x = 133,245,874,281,969.48
  5. Step 5: Solve for x
    x = 133,245,874,281,969.48/9,978,429.20
  6. Step 6: Final answer
    x = 13,353,391.76

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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.