Home / 219,888,906.40-329,833,359.60-209,811,210.40

Finding the Fourth Proportional to 219,888,906.40, 329,833,359.60 and 209,811,210.40

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Solution

The fourth proportional to 219,888,906.40, 329,833,359.60 and 209,811,210.40 is: 314,716,815.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,888,906.40 : 329,833,359.60 = 209,811,210.40 : x
  2. Step 2: Convert to fraction form
    219,888,906.40/329,833,359.60 = 209,811,210.40/x
  3. Step 3: Cross multiply
    219,888,906.40x = 329,833,359.60 × 209,811,210.40
  4. Step 4: Simplify right side
    219,888,906.40x = 69,202,736,407,974,464
  5. Step 5: Solve for x
    x = 69,202,736,407,974,464/219,888,906.40
  6. Step 6: Final answer
    x = 314,716,815.60

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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.