Home / 168,289,964.10-252,360,296.55-77,366,751.30

Finding the Fourth Proportional to 168,289,964.10, 252,360,296.55 and 77,366,751.30

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Solution

The fourth proportional to 168,289,964.10, 252,360,296.55 and 77,366,751.30 is: 116,015,808.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,289,964.10 : 252,360,296.55 = 77,366,751.30 : x
  2. Step 2: Convert to fraction form
    168,289,964.10/252,360,296.55 = 77,366,751.30/x
  3. Step 3: Cross multiply
    168,289,964.10x = 252,360,296.55 × 77,366,751.30
  4. Step 4: Simplify right side
    168,289,964.10x = 19,524,296,301,178,100
  5. Step 5: Solve for x
    x = 19,524,296,301,178,100/168,289,964.10
  6. Step 6: Final answer
    x = 116,015,808.82

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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.