Home / 398,949,667.20-550,508,581.44-231,653,226.24

Finding the Fourth Proportional to 398,949,667.20, 550,508,581.44 and 231,653,226.24

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Solution

The fourth proportional to 398,949,667.20, 550,508,581.44 and 231,653,226.24 is: 319,657,088.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,949,667.20 : 550,508,581.44 = 231,653,226.24 : x
  2. Step 2: Convert to fraction form
    398,949,667.20/550,508,581.44 = 231,653,226.24/x
  3. Step 3: Cross multiply
    398,949,667.20x = 550,508,581.44 × 231,653,226.24
  4. Step 4: Simplify right side
    398,949,667.20x = 127,527,088,963,381,808
  5. Step 5: Solve for x
    x = 127,527,088,963,381,808/398,949,667.20
  6. Step 6: Final answer
    x = 319,657,088.22

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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.