Home / 678,620,490.30-1,017,930,735.45-334,246,722.30

Finding the Fourth Proportional to 678,620,490.30, 1,017,930,735.45 and 334,246,722.30

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Solution

The fourth proportional to 678,620,490.30, 1,017,930,735.45 and 334,246,722.30 is: 501,370,083.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,620,490.30 : 1,017,930,735.45 = 334,246,722.30 : x
  2. Step 2: Convert to fraction form
    678,620,490.30/1,017,930,735.45 = 334,246,722.30/x
  3. Step 3: Cross multiply
    678,620,490.30x = 1,017,930,735.45 × 334,246,722.30
  4. Step 4: Simplify right side
    678,620,490.30x = 340,240,011,852,590,912
  5. Step 5: Solve for x
    x = 340,240,011,852,590,912/678,620,490.30
  6. Step 6: Final answer
    x = 501,370,083.45

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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.