Home / 683,315,713.45-1,025,148,355.20-198,641,521.45

Finding the Fourth Proportional to 683,315,713.45, 1,025,148,355.20 and 198,641,521.45

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Solution

The fourth proportional to 683,315,713.45, 1,025,148,355.20 and 198,641,521.45 is: 298,013,092.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    683,315,713.45 : 1,025,148,355.20 = 198,641,521.45 : x
  2. Step 2: Convert to fraction form
    683,315,713.45/1,025,148,355.20 = 198,641,521.45/x
  3. Step 3: Cross multiply
    683,315,713.45x = 1,025,148,355.20 × 198,641,521.45
  4. Step 4: Simplify right side
    683,315,713.45x = 203,637,028,983,767,264
  5. Step 5: Solve for x
    x = 203,637,028,983,767,264/683,315,713.45
  6. Step 6: Final answer
    x = 298,013,092.60

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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.