Home / 221,183,483.38-305,233,398.45-123,398,359.54

Finding the Fourth Proportional to 221,183,483.38, 305,233,398.45 and 123,398,359.54

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Solution

The fourth proportional to 221,183,483.38, 305,233,398.45 and 123,398,359.54 is: 170,289,842.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,183,483.38 : 305,233,398.45 = 123,398,359.54 : x
  2. Step 2: Convert to fraction form
    221,183,483.38/305,233,398.45 = 123,398,359.54/x
  3. Step 3: Cross multiply
    221,183,483.38x = 305,233,398.45 × 123,398,359.54
  4. Step 4: Simplify right side
    221,183,483.38x = 37,665,300,645,549,176
  5. Step 5: Solve for x
    x = 37,665,300,645,549,176/221,183,483.38
  6. Step 6: Final answer
    x = 170,289,842.94

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1.5x scale

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.