Home / 218,831,750.40-328,247,625.60-208,754,054.40

Finding the Fourth Proportional to 218,831,750.40, 328,247,625.60 and 208,754,054.40

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Solution

The fourth proportional to 218,831,750.40, 328,247,625.60 and 208,754,054.40 is: 313,131,081.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,831,750.40 : 328,247,625.60 = 208,754,054.40 : x
  2. Step 2: Convert to fraction form
    218,831,750.40/328,247,625.60 = 208,754,054.40/x
  3. Step 3: Cross multiply
    218,831,750.40x = 328,247,625.60 × 208,754,054.40
  4. Step 4: Simplify right side
    218,831,750.40x = 68,523,022,691,173,240
  5. Step 5: Solve for x
    x = 68,523,022,691,173,240/218,831,750.40
  6. Step 6: Final answer
    x = 313,131,081.60

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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.