Home / 411,212,617.83-616,821,026.27-138,585,746.79

Finding the Fourth Proportional to 411,212,617.83, 616,821,026.27 and 138,585,746.79

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Solution

The fourth proportional to 411,212,617.83, 616,821,026.27 and 138,585,746.79 is: 207,879,327.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,212,617.83 : 616,821,026.27 = 138,585,746.79 : x
  2. Step 2: Convert to fraction form
    411,212,617.83/616,821,026.27 = 138,585,746.79/x
  3. Step 3: Cross multiply
    411,212,617.83x = 616,821,026.27 × 138,585,746.79
  4. Step 4: Simplify right side
    411,212,617.83x = 85,482,602,560,709,216
  5. Step 5: Solve for x
    x = 85,482,602,560,709,216/411,212,617.83
  6. Step 6: Final answer
    x = 207,879,327.76

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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.