Home / 287,975,291.55-431,982,091.79-101,206,646.11

Finding the Fourth Proportional to 287,975,291.55, 431,982,091.79 and 101,206,646.11

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Solution

The fourth proportional to 287,975,291.55, 431,982,091.79 and 101,206,646.11 is: 151,816,700.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,975,291.55 : 431,982,091.79 = 101,206,646.11 : x
  2. Step 2: Convert to fraction form
    287,975,291.55/431,982,091.79 = 101,206,646.11/x
  3. Step 3: Cross multiply
    287,975,291.55x = 431,982,091.79 × 101,206,646.11
  4. Step 4: Simplify right side
    287,975,291.55x = 43,719,458,689,648,072
  5. Step 5: Solve for x
    x = 43,719,458,689,648,072/287,975,291.55
  6. Step 6: Final answer
    x = 151,816,700.85

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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.