Home / 411,212,624.34-616,821,036.04-138,585,753.30

Finding the Fourth Proportional to 411,212,624.34, 616,821,036.04 and 138,585,753.30

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Solution

The fourth proportional to 411,212,624.34, 616,821,036.04 and 138,585,753.30 is: 207,879,337.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,212,624.34 : 616,821,036.04 = 138,585,753.30 : x
  2. Step 2: Convert to fraction form
    411,212,624.34/616,821,036.04 = 138,585,753.30/x
  3. Step 3: Cross multiply
    411,212,624.34x = 616,821,036.04 × 138,585,753.30
  4. Step 4: Simplify right side
    411,212,624.34x = 85,482,607,930,889,856
  5. Step 5: Solve for x
    x = 85,482,607,930,889,856/411,212,624.34
  6. Step 6: Final answer
    x = 207,879,337.53

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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.