Home / 711,468,579,839.47-981,799,102,975.76-386,300,429,264.10

Finding the Fourth Proportional to 711,468,579,839.47, 981,799,102,975.76 and 386,300,429,264.10

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Solution

The fourth proportional to 711,468,579,839.47, 981,799,102,975.76 and 386,300,429,264.10 is: 533,079,640,728.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,468,579,839.47 : 981,799,102,975.76 = 386,300,429,264.10 : x
  2. Step 2: Convert to fraction form
    711,468,579,839.47/981,799,102,975.76 = 386,300,429,264.10/x
  3. Step 3: Cross multiply
    711,468,579,839.47x = 981,799,102,975.76 × 386,300,429,264.10
  4. Step 4: Simplify right side
    711,468,579,839.47x = 379,269,414,930,644,385,923,072
  5. Step 5: Solve for x
    x = 379,269,414,930,644,385,923,072/711,468,579,839.47
  6. Step 6: Final answer
    x = 533,079,640,728.79

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Double scale
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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.