Home / 31,863,412,859.79-47,771,556,812.25-19,269,471,456.87

Finding the Fourth Proportional to 31,863,412,859.79, 47,771,556,812.25 and 19,269,471,456.87

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Solution

The fourth proportional to 31,863,412,859.79, 47,771,556,812.25 and 19,269,471,456.87 is: 28,889,957,723.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,863,412,859.79 : 47,771,556,812.25 = 19,269,471,456.87 : x
  2. Step 2: Convert to fraction form
    31,863,412,859.79/47,771,556,812.25 = 19,269,471,456.87/x
  3. Step 3: Cross multiply
    31,863,412,859.79x = 47,771,556,812.25 × 19,269,471,456.87
  4. Step 4: Simplify right side
    31,863,412,859.79x = 920,532,650,443,894,947,840
  5. Step 5: Solve for x
    x = 920,532,650,443,894,947,840/31,863,412,859.79
  6. Step 6: Final answer
    x = 28,889,957,723.44

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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.