Home / 280,004,631.26-386,406,428.96-154,556,850.85

Finding the Fourth Proportional to 280,004,631.26, 386,406,428.96 and 154,556,850.85

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Solution

The fourth proportional to 280,004,631.26, 386,406,428.96 and 154,556,850.85 is: 213,288,475.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,004,631.26 : 386,406,428.96 = 154,556,850.85 : x
  2. Step 2: Convert to fraction form
    280,004,631.26/386,406,428.96 = 154,556,850.85/x
  3. Step 3: Cross multiply
    280,004,631.26x = 386,406,428.96 × 154,556,850.85
  4. Step 4: Simplify right side
    280,004,631.26x = 59,721,760,808,979,816
  5. Step 5: Solve for x
    x = 59,721,760,808,979,816/280,004,631.26
  6. Step 6: Final answer
    x = 213,288,475.05

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.