Home / 168,291,320.10-252,362,330.55-77,368,107.30

Finding the Fourth Proportional to 168,291,320.10, 252,362,330.55 and 77,368,107.30

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Solution

The fourth proportional to 168,291,320.10, 252,362,330.55 and 77,368,107.30 is: 116,017,842.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,291,320.10 : 252,362,330.55 = 77,368,107.30 : x
  2. Step 2: Convert to fraction form
    168,291,320.10/252,362,330.55 = 77,368,107.30/x
  3. Step 3: Cross multiply
    168,291,320.10x = 252,362,330.55 × 77,368,107.30
  4. Step 4: Simplify right side
    168,291,320.10x = 19,524,795,868,470,468
  5. Step 5: Solve for x
    x = 19,524,795,868,470,468/168,291,320.10
  6. Step 6: Final answer
    x = 116,017,842.49

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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.