Home / 711,468,579,888.72-981,799,103,044.08-386,300,429,313.12

Finding the Fourth Proportional to 711,468,579,888.72, 981,799,103,044.08 and 386,300,429,313.12

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Solution

The fourth proportional to 711,468,579,888.72, 981,799,103,044.08 and 386,300,429,313.12 is: 533,079,640,796.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,468,579,888.72 : 981,799,103,044.08 = 386,300,429,313.12 : x
  2. Step 2: Convert to fraction form
    711,468,579,888.72/981,799,103,044.08 = 386,300,429,313.12/x
  3. Step 3: Cross multiply
    711,468,579,888.72x = 981,799,103,044.08 × 386,300,429,313.12
  4. Step 4: Simplify right side
    711,468,579,888.72x = 379,269,415,005,164,215,992,320
  5. Step 5: Solve for x
    x = 379,269,415,005,164,215,992,320/711,468,579,888.72
  6. Step 6: Final answer
    x = 533,079,640,796.63

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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.