Home / 23,139,013,914.25-31,899,560,612.96-15,519,421,446.84

Finding the Fourth Proportional to 23,139,013,914.25, 31,899,560,612.96 and 15,519,421,446.84

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Solution

The fourth proportional to 23,139,013,914.25, 31,899,560,612.96 and 15,519,421,446.84 is: 21,395,152,228.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,139,013,914.25 : 31,899,560,612.96 = 15,519,421,446.84 : x
  2. Step 2: Convert to fraction form
    23,139,013,914.25/31,899,560,612.96 = 15,519,421,446.84/x
  3. Step 3: Cross multiply
    23,139,013,914.25x = 31,899,560,612.96 × 15,519,421,446.84
  4. Step 4: Simplify right side
    23,139,013,914.25x = 495,062,725,121,543,962,624
  5. Step 5: Solve for x
    x = 495,062,725,121,543,962,624/23,139,013,914.25
  6. Step 6: Final answer
    x = 21,395,152,228.88

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.