Home / 168,020,530.80-251,526,911.40-99,828,121.20

Finding the Fourth Proportional to 168,020,530.80, 251,526,911.40 and 99,828,121.20

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Solution

The fourth proportional to 168,020,530.80, 251,526,911.40 and 99,828,121.20 is: 149,442,802.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,020,530.80 : 251,526,911.40 = 99,828,121.20 : x
  2. Step 2: Convert to fraction form
    168,020,530.80/251,526,911.40 = 99,828,121.20/x
  3. Step 3: Cross multiply
    168,020,530.80x = 251,526,911.40 × 99,828,121.20
  4. Step 4: Simplify right side
    168,020,530.80x = 25,109,458,996,300,864
  5. Step 5: Solve for x
    x = 25,109,458,996,300,864/168,020,530.80
  6. Step 6: Final answer
    x = 149,442,802.48

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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.