Home / 711,468,579,838.47-981,799,102,974.38-386,300,429,263.10

Finding the Fourth Proportional to 711,468,579,838.47, 981,799,102,974.38 and 386,300,429,263.10

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Solution

The fourth proportional to 711,468,579,838.47, 981,799,102,974.38 and 386,300,429,263.10 is: 533,079,640,727.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,468,579,838.47 : 981,799,102,974.38 = 386,300,429,263.10 : x
  2. Step 2: Convert to fraction form
    711,468,579,838.47/981,799,102,974.38 = 386,300,429,263.10/x
  3. Step 3: Cross multiply
    711,468,579,838.47x = 981,799,102,974.38 × 386,300,429,263.10
  4. Step 4: Simplify right side
    711,468,579,838.47x = 379,269,414,929,129,470,427,136
  5. Step 5: Solve for x
    x = 379,269,414,929,129,470,427,136/711,468,579,838.47
  6. Step 6: Final answer
    x = 533,079,640,727.41

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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.