Home / 654,604,313.40-981,906,470.10-409,238,003.70

Finding the Fourth Proportional to 654,604,313.40, 981,906,470.10 and 409,238,003.70

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Solution

The fourth proportional to 654,604,313.40, 981,906,470.10 and 409,238,003.70 is: 613,857,005.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    654,604,313.40 : 981,906,470.10 = 409,238,003.70 : x
  2. Step 2: Convert to fraction form
    654,604,313.40/981,906,470.10 = 409,238,003.70/x
  3. Step 3: Cross multiply
    654,604,313.40x = 981,906,470.10 × 409,238,003.70
  4. Step 4: Simplify right side
    654,604,313.40x = 401,833,443,643,837,760
  5. Step 5: Solve for x
    x = 401,833,443,643,837,760/654,604,313.40
  6. Step 6: Final answer
    x = 613,857,005.55

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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.