Home / 278,635,928.24-384,507,773.88-153,187,210.64

Finding the Fourth Proportional to 278,635,928.24, 384,507,773.88 and 153,187,210.64

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Solution

The fourth proportional to 278,635,928.24, 384,507,773.88 and 153,187,210.64 is: 211,392,958.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,635,928.24 : 384,507,773.88 = 153,187,210.64 : x
  2. Step 2: Convert to fraction form
    278,635,928.24/384,507,773.88 = 153,187,210.64/x
  3. Step 3: Cross multiply
    278,635,928.24x = 384,507,773.88 × 153,187,210.64
  4. Step 4: Simplify right side
    278,635,928.24x = 58,901,673,350,073,040
  5. Step 5: Solve for x
    x = 58,901,673,350,073,040/278,635,928.24
  6. Step 6: Final answer
    x = 211,392,958.98

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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.