Home / 646,737,019.20-970,247,246.40-319,369,363.20

Finding the Fourth Proportional to 646,737,019.20, 970,247,246.40 and 319,369,363.20

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Solution

The fourth proportional to 646,737,019.20, 970,247,246.40 and 319,369,363.20 is: 479,124,027.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,737,019.20 : 970,247,246.40 = 319,369,363.20 : x
  2. Step 2: Convert to fraction form
    646,737,019.20/970,247,246.40 = 319,369,363.20/x
  3. Step 3: Cross multiply
    646,737,019.20x = 970,247,246.40 × 319,369,363.20
  4. Step 4: Simplify right side
    646,737,019.20x = 309,867,245,229,321,472
  5. Step 5: Solve for x
    x = 309,867,245,229,321,472/646,737,019.20
  6. Step 6: Final answer
    x = 479,124,027.28

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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.