Home / 268,400,734.30-402,601,101.45-139,260,571.30

Finding the Fourth Proportional to 268,400,734.30, 402,601,101.45 and 139,260,571.30

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Solution

The fourth proportional to 268,400,734.30, 402,601,101.45 and 139,260,571.30 is: 208,890,856.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,400,734.30 : 402,601,101.45 = 139,260,571.30 : x
  2. Step 2: Convert to fraction form
    268,400,734.30/402,601,101.45 = 139,260,571.30/x
  3. Step 3: Cross multiply
    268,400,734.30x = 402,601,101.45 × 139,260,571.30
  4. Step 4: Simplify right side
    268,400,734.30x = 56,066,459,393,936,264
  5. Step 5: Solve for x
    x = 56,066,459,393,936,264/268,400,734.30
  6. Step 6: Final answer
    x = 208,890,856.95

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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.