Home / 354,071,285.40-531,442,851.30-218,022,389.40

Finding the Fourth Proportional to 354,071,285.40, 531,442,851.30 and 218,022,389.40

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Solution

The fourth proportional to 354,071,285.40, 531,442,851.30 and 218,022,389.40 is: 327,240,431.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,071,285.40 : 531,442,851.30 = 218,022,389.40 : x
  2. Step 2: Convert to fraction form
    354,071,285.40/531,442,851.30 = 218,022,389.40/x
  3. Step 3: Cross multiply
    354,071,285.40x = 531,442,851.30 × 218,022,389.40
  4. Step 4: Simplify right side
    354,071,285.40x = 115,866,440,269,974,896
  5. Step 5: Solve for x
    x = 115,866,440,269,974,896/354,071,285.40
  6. Step 6: Final answer
    x = 327,240,431.65

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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.