Home / 21,217,554,661.31-31,826,332,023.07-8,623,462,438.76

Finding the Fourth Proportional to 21,217,554,661.31, 31,826,332,023.07 and 8,623,462,438.76

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Solution

The fourth proportional to 21,217,554,661.31, 31,826,332,023.07 and 8,623,462,438.76 is: 12,935,193,670.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,217,554,661.31 : 31,826,332,023.07 = 8,623,462,438.76 : x
  2. Step 2: Convert to fraction form
    21,217,554,661.31/31,826,332,023.07 = 8,623,462,438.76/x
  3. Step 3: Cross multiply
    21,217,554,661.31x = 31,826,332,023.07 × 8,623,462,438.76
  4. Step 4: Simplify right side
    21,217,554,661.31x = 274,453,178,764,448,727,040
  5. Step 5: Solve for x
    x = 274,453,178,764,448,727,040/21,217,554,661.31
  6. Step 6: Final answer
    x = 12,935,193,670.78

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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.