Home / 213,603,863.68-320,418,201.48-82,446,888.16

Finding the Fourth Proportional to 213,603,863.68, 320,418,201.48 and 82,446,888.16

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Solution

The fourth proportional to 213,603,863.68, 320,418,201.48 and 82,446,888.16 is: 123,675,120.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,603,863.68 : 320,418,201.48 = 82,446,888.16 : x
  2. Step 2: Convert to fraction form
    213,603,863.68/320,418,201.48 = 82,446,888.16/x
  3. Step 3: Cross multiply
    213,603,863.68x = 320,418,201.48 × 82,446,888.16
  4. Step 4: Simplify right side
    213,603,863.68x = 26,417,483,621,849,908
  5. Step 5: Solve for x
    x = 26,417,483,621,849,908/213,603,863.68
  6. Step 6: Final answer
    x = 123,675,120.70

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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.