Home / 168,291,291.60-252,362,287.80-77,368,078.80

Finding the Fourth Proportional to 168,291,291.60, 252,362,287.80 and 77,368,078.80

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Solution

The fourth proportional to 168,291,291.60, 252,362,287.80 and 77,368,078.80 is: 116,017,799.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,291,291.60 : 252,362,287.80 = 77,368,078.80 : x
  2. Step 2: Convert to fraction form
    168,291,291.60/252,362,287.80 = 77,368,078.80/x
  3. Step 3: Cross multiply
    168,291,291.60x = 252,362,287.80 × 77,368,078.80
  4. Step 4: Simplify right side
    168,291,291.60x = 19,524,785,368,658,680
  5. Step 5: Solve for x
    x = 19,524,785,368,658,680/168,291,291.60
  6. Step 6: Final answer
    x = 116,017,799.75

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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.