Home / 411,212,595.61-616,820,992.94-138,585,724.57

Finding the Fourth Proportional to 411,212,595.61, 616,820,992.94 and 138,585,724.57

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Solution

The fourth proportional to 411,212,595.61, 616,820,992.94 and 138,585,724.57 is: 207,879,294.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,212,595.61 : 616,820,992.94 = 138,585,724.57 : x
  2. Step 2: Convert to fraction form
    411,212,595.61/616,820,992.94 = 138,585,724.57/x
  3. Step 3: Cross multiply
    411,212,595.61x = 616,820,992.94 × 138,585,724.57
  4. Step 4: Simplify right side
    411,212,595.61x = 85,482,584,236,903,696
  5. Step 5: Solve for x
    x = 85,482,584,236,903,696/411,212,595.61
  6. Step 6: Final answer
    x = 207,879,294.43

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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.