Home / 711,107,275,605.45-981,329,012,112.30-385,946,572,420.49

Finding the Fourth Proportional to 711,107,275,605.45, 981,329,012,112.30 and 385,946,572,420.49

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Solution

The fourth proportional to 711,107,275,605.45, 981,329,012,112.30 and 385,946,572,420.49 is: 532,606,797,362.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,107,275,605.45 : 981,329,012,112.30 = 385,946,572,420.49 : x
  2. Step 2: Convert to fraction form
    711,107,275,605.45/981,329,012,112.30 = 385,946,572,420.49/x
  3. Step 3: Cross multiply
    711,107,275,605.45x = 981,329,012,112.30 × 385,946,572,420.49
  4. Step 4: Simplify right side
    711,107,275,605.45x = 378,740,568,641,527,693,180,928
  5. Step 5: Solve for x
    x = 378,740,568,641,527,693,180,928/711,107,275,605.45
  6. Step 6: Final answer
    x = 532,606,797,362.69

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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.