Home / 31,490,509,276.60-47,269,378,240.47-13,571,730,789.88

Finding the Fourth Proportional to 31,490,509,276.60, 47,269,378,240.47 and 13,571,730,789.88

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Solution

The fourth proportional to 31,490,509,276.60, 47,269,378,240.47 and 13,571,730,789.88 is: 20,372,083,234.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,490,509,276.60 : 47,269,378,240.47 = 13,571,730,789.88 : x
  2. Step 2: Convert to fraction form
    31,490,509,276.60/47,269,378,240.47 = 13,571,730,789.88/x
  3. Step 3: Cross multiply
    31,490,509,276.60x = 47,269,378,240.47 × 13,571,730,789.88
  4. Step 4: Simplify right side
    31,490,509,276.60x = 641,527,276,084,764,999,680
  5. Step 5: Solve for x
    x = 641,527,276,084,764,999,680/31,490,509,276.60
  6. Step 6: Final answer
    x = 20,372,083,234.66

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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.