Home / 190,722,979.56-286,127,115.03-69,554,431.56

Finding the Fourth Proportional to 190,722,979.56, 286,127,115.03 and 69,554,431.56

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Solution

The fourth proportional to 190,722,979.56, 286,127,115.03 and 69,554,431.56 is: 104,347,199.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,722,979.56 : 286,127,115.03 = 69,554,431.56 : x
  2. Step 2: Convert to fraction form
    190,722,979.56/286,127,115.03 = 69,554,431.56/x
  3. Step 3: Cross multiply
    190,722,979.56x = 286,127,115.03 × 69,554,431.56
  4. Step 4: Simplify right side
    190,722,979.56x = 19,901,408,839,814,380
  5. Step 5: Solve for x
    x = 19,901,408,839,814,380/190,722,979.56
  6. Step 6: Final answer
    x = 104,347,199.72

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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.