Home / 531,492,286.20-797,238,429.30-421,723,147.65

Finding the Fourth Proportional to 531,492,286.20, 797,238,429.30 and 421,723,147.65

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Solution

The fourth proportional to 531,492,286.20, 797,238,429.30 and 421,723,147.65 is: 632,584,721.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,492,286.20 : 797,238,429.30 = 421,723,147.65 : x
  2. Step 2: Convert to fraction form
    531,492,286.20/797,238,429.30 = 421,723,147.65/x
  3. Step 3: Cross multiply
    531,492,286.20x = 797,238,429.30 × 421,723,147.65
  4. Step 4: Simplify right side
    531,492,286.20x = 336,213,899,831,937,920
  5. Step 5: Solve for x
    x = 336,213,899,831,937,920/531,492,286.20
  6. Step 6: Final answer
    x = 632,584,721.48

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Double scale
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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.