Home / 218,007,393.12-325,621,352.28-197,225,917.92

Finding the Fourth Proportional to 218,007,393.12, 325,621,352.28 and 197,225,917.92

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Solution

The fourth proportional to 218,007,393.12, 325,621,352.28 and 197,225,917.92 is: 294,581,615.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,007,393.12 : 325,621,352.28 = 197,225,917.92 : x
  2. Step 2: Convert to fraction form
    218,007,393.12/325,621,352.28 = 197,225,917.92/x
  3. Step 3: Cross multiply
    218,007,393.12x = 325,621,352.28 × 197,225,917.92
  4. Step 4: Simplify right side
    218,007,393.12x = 64,220,970,097,774,672
  5. Step 5: Solve for x
    x = 64,220,970,097,774,672/218,007,393.12
  6. Step 6: Final answer
    x = 294,581,615.69

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.