Home / 711,468,579,834.72-981,799,102,969.20-386,300,429,259.35

Finding the Fourth Proportional to 711,468,579,834.72, 981,799,102,969.20 and 386,300,429,259.35

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Solution

The fourth proportional to 711,468,579,834.72, 981,799,102,969.20 and 386,300,429,259.35 is: 533,079,640,722.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,468,579,834.72 : 981,799,102,969.20 = 386,300,429,259.35 : x
  2. Step 2: Convert to fraction form
    711,468,579,834.72/981,799,102,969.20 = 386,300,429,259.35/x
  3. Step 3: Cross multiply
    711,468,579,834.72x = 981,799,102,969.20 × 386,300,429,259.35
  4. Step 4: Simplify right side
    711,468,579,834.72x = 379,269,414,923,446,691,823,616
  5. Step 5: Solve for x
    x = 379,269,414,923,446,691,823,616/711,468,579,834.72
  6. Step 6: Final answer
    x = 533,079,640,722.23

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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.