Home / 423,421,296.19-635,061,498.51-128,246,236.90

Finding the Fourth Proportional to 423,421,296.19, 635,061,498.51 and 128,246,236.90

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Solution

The fourth proportional to 423,421,296.19, 635,061,498.51 and 128,246,236.90 is: 192,348,018.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,421,296.19 : 635,061,498.51 = 128,246,236.90 : x
  2. Step 2: Convert to fraction form
    423,421,296.19/635,061,498.51 = 128,246,236.90/x
  3. Step 3: Cross multiply
    423,421,296.19x = 635,061,498.51 × 128,246,236.90
  4. Step 4: Simplify right side
    423,421,296.19x = 81,444,247,383,982,464
  5. Step 5: Solve for x
    x = 81,444,247,383,982,464/423,421,296.19
  6. Step 6: Final answer
    x = 192,348,018.67

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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.