Home / 219,390,443.38-328,989,993.81-82,980,167.50

Finding the Fourth Proportional to 219,390,443.38, 328,989,993.81 and 82,980,167.50

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Solution

The fourth proportional to 219,390,443.38, 328,989,993.81 and 82,980,167.50 is: 124,434,065.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,390,443.38 : 328,989,993.81 = 82,980,167.50 : x
  2. Step 2: Convert to fraction form
    219,390,443.38/328,989,993.81 = 82,980,167.50/x
  3. Step 3: Cross multiply
    219,390,443.38x = 328,989,993.81 × 82,980,167.50
  4. Step 4: Simplify right side
    219,390,443.38x = 27,299,644,792,177,764
  5. Step 5: Solve for x
    x = 27,299,644,792,177,764/219,390,443.38
  6. Step 6: Final answer
    x = 124,434,065.46

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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.