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Finding the Fourth Proportional to 402,215,593.20, 603,323,389.80 and 159,878,497.20

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Solution

The fourth proportional to 402,215,593.20, 603,323,389.80 and 159,878,497.20 is: 239,817,745.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,215,593.20 : 603,323,389.80 = 159,878,497.20 : x
  2. Step 2: Convert to fraction form
    402,215,593.20/603,323,389.80 = 159,878,497.20/x
  3. Step 3: Cross multiply
    402,215,593.20x = 603,323,389.80 × 159,878,497.20
  4. Step 4: Simplify right side
    402,215,593.20x = 96,458,436,886,833,792
  5. Step 5: Solve for x
    x = 96,458,436,886,833,792/402,215,593.20
  6. Step 6: Final answer
    x = 239,817,745.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.