Home / 168,291,298.10-252,362,297.55-77,368,085.30

Finding the Fourth Proportional to 168,291,298.10, 252,362,297.55 and 77,368,085.30

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Solution

The fourth proportional to 168,291,298.10, 252,362,297.55 and 77,368,085.30 is: 116,017,809.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,291,298.10 : 252,362,297.55 = 77,368,085.30 : x
  2. Step 2: Convert to fraction form
    168,291,298.10/252,362,297.55 = 77,368,085.30/x
  3. Step 3: Cross multiply
    168,291,298.10x = 252,362,297.55 × 77,368,085.30
  4. Step 4: Simplify right side
    168,291,298.10x = 19,524,787,763,352,380
  5. Step 5: Solve for x
    x = 19,524,787,763,352,380/168,291,298.10
  6. Step 6: Final answer
    x = 116,017,809.50

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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.