Home / 219,884,974.20-329,864,786.10-66,529,812.60

Finding the Fourth Proportional to 219,884,974.20, 329,864,786.10 and 66,529,812.60

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Solution

The fourth proportional to 219,884,974.20, 329,864,786.10 and 66,529,812.60 is: 99,806,012.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,884,974.20 : 329,864,786.10 = 66,529,812.60 : x
  2. Step 2: Convert to fraction form
    219,884,974.20/329,864,786.10 = 66,529,812.60/x
  3. Step 3: Cross multiply
    219,884,974.20x = 329,864,786.10 × 66,529,812.60
  4. Step 4: Simplify right side
    219,884,974.20x = 21,945,842,402,572,088
  5. Step 5: Solve for x
    x = 21,945,842,402,572,088/219,884,974.20
  6. Step 6: Final answer
    x = 99,806,012.13

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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.