Home / 326,606,638.40-490,133,906.40-144,984,161.60

Finding the Fourth Proportional to 326,606,638.40, 490,133,906.40 and 144,984,161.60

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Solution

The fourth proportional to 326,606,638.40, 490,133,906.40 and 144,984,161.60 is: 217,575,655.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,606,638.40 : 490,133,906.40 = 144,984,161.60 : x
  2. Step 2: Convert to fraction form
    326,606,638.40/490,133,906.40 = 144,984,161.60/x
  3. Step 3: Cross multiply
    326,606,638.40x = 490,133,906.40 × 144,984,161.60
  4. Step 4: Simplify right side
    326,606,638.40x = 71,061,653,491,136,864
  5. Step 5: Solve for x
    x = 71,061,653,491,136,864/326,606,638.40
  6. Step 6: Final answer
    x = 217,575,655.65

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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.