Home / 31,490,509,276.15-47,269,378,239.79-13,571,730,789.43

Finding the Fourth Proportional to 31,490,509,276.15, 47,269,378,239.79 and 13,571,730,789.43

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Solution

The fourth proportional to 31,490,509,276.15, 47,269,378,239.79 and 13,571,730,789.43 is: 20,372,083,233.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,490,509,276.15 : 47,269,378,239.79 = 13,571,730,789.43 : x
  2. Step 2: Convert to fraction form
    31,490,509,276.15/47,269,378,239.79 = 13,571,730,789.43/x
  3. Step 3: Cross multiply
    31,490,509,276.15x = 47,269,378,239.79 × 13,571,730,789.43
  4. Step 4: Simplify right side
    31,490,509,276.15x = 641,527,276,053,933,981,696
  5. Step 5: Solve for x
    x = 641,527,276,053,933,981,696/31,490,509,276.15
  6. Step 6: Final answer
    x = 20,372,083,233.98

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1.5x scale

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.