Home / 20,474,856,680.70-30,712,285,021.05-18,107,605,890.30

Finding the Fourth Proportional to 20,474,856,680.70, 30,712,285,021.05 and 18,107,605,890.30

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Solution

The fourth proportional to 20,474,856,680.70, 30,712,285,021.05 and 18,107,605,890.30 is: 27,161,408,835.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,474,856,680.70 : 30,712,285,021.05 = 18,107,605,890.30 : x
  2. Step 2: Convert to fraction form
    20,474,856,680.70/30,712,285,021.05 = 18,107,605,890.30/x
  3. Step 3: Cross multiply
    20,474,856,680.70x = 30,712,285,021.05 × 18,107,605,890.30
  4. Step 4: Simplify right side
    20,474,856,680.70x = 556,125,953,151,737,397,248
  5. Step 5: Solve for x
    x = 556,125,953,151,737,397,248/20,474,856,680.70
  6. Step 6: Final answer
    x = 27,161,408,835.45

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Double scale
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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.