Home / 421,486,758.48-632,226,591-329,447,913.24

Finding the Fourth Proportional to 421,486,758.48, 632,226,591 and 329,447,913.24

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Solution

The fourth proportional to 421,486,758.48, 632,226,591 and 329,447,913.24 is: 494,169,097.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    421,486,758.48 : 632,226,591 = 329,447,913.24 : x
  2. Step 2: Convert to fraction form
    421,486,758.48/632,226,591 = 329,447,913.24/x
  3. Step 3: Cross multiply
    421,486,758.48x = 632,226,591 × 329,447,913.24
  4. Step 4: Simplify right side
    421,486,758.48x = 208,285,731,099,788,960
  5. Step 5: Solve for x
    x = 208,285,731,099,788,960/421,486,758.48
  6. Step 6: Final answer
    x = 494,169,097.63

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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.