Home / 194,142,371.40-290,965,551.30-78,996,821.40

Finding the Fourth Proportional to 194,142,371.40, 290,965,551.30 and 78,996,821.40

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Solution

The fourth proportional to 194,142,371.40, 290,965,551.30 and 78,996,821.40 is: 118,394,318.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,142,371.40 : 290,965,551.30 = 78,996,821.40 : x
  2. Step 2: Convert to fraction form
    194,142,371.40/290,965,551.30 = 78,996,821.40/x
  3. Step 3: Cross multiply
    194,142,371.40x = 290,965,551.30 × 78,996,821.40
  4. Step 4: Simplify right side
    194,142,371.40x = 22,985,353,689,598,640
  5. Step 5: Solve for x
    x = 22,985,353,689,598,640/194,142,371.40
  6. Step 6: Final answer
    x = 118,394,318.17

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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.