Home / 1,418,078,338.92-1,957,274,625.06-831,556,431.72

Finding the Fourth Proportional to 1,418,078,338.92, 1,957,274,625.06 and 831,556,431.72

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Solution

The fourth proportional to 1,418,078,338.92, 1,957,274,625.06 and 831,556,431.72 is: 1,147,739,344.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,418,078,338.92 : 1,957,274,625.06 = 831,556,431.72 : x
  2. Step 2: Convert to fraction form
    1,418,078,338.92/1,957,274,625.06 = 831,556,431.72/x
  3. Step 3: Cross multiply
    1,418,078,338.92x = 1,957,274,625.06 × 831,556,431.72
  4. Step 4: Simplify right side
    1,418,078,338.92x = 1,627,584,303,110,994,432
  5. Step 5: Solve for x
    x = 1,627,584,303,110,994,432/1,418,078,338.92
  6. Step 6: Final answer
    x = 1,147,739,344.46

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.