Home / 490,040,426.10-735,060,639.15-217,438,749.30

Finding the Fourth Proportional to 490,040,426.10, 735,060,639.15 and 217,438,749.30

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Solution

The fourth proportional to 490,040,426.10, 735,060,639.15 and 217,438,749.30 is: 326,158,123.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,040,426.10 : 735,060,639.15 = 217,438,749.30 : x
  2. Step 2: Convert to fraction form
    490,040,426.10/735,060,639.15 = 217,438,749.30/x
  3. Step 3: Cross multiply
    490,040,426.10x = 735,060,639.15 × 217,438,749.30
  4. Step 4: Simplify right side
    490,040,426.10x = 159,830,666,036,434,624
  5. Step 5: Solve for x
    x = 159,830,666,036,434,624/490,040,426.10
  6. Step 6: Final answer
    x = 326,158,123.95

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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.