Home / 711,144,196,920.73-981,376,517,186.25-385,983,487,879.02

Finding the Fourth Proportional to 711,144,196,920.73, 981,376,517,186.25 and 385,983,487,879.02

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Solution

The fourth proportional to 711,144,196,920.73, 981,376,517,186.25 and 385,983,487,879.02 is: 532,655,870,168.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,144,196,920.73 : 981,376,517,186.25 = 385,983,487,879.02 : x
  2. Step 2: Convert to fraction form
    711,144,196,920.73/981,376,517,186.25 = 385,983,487,879.02/x
  3. Step 3: Cross multiply
    711,144,196,920.73x = 981,376,517,186.25 × 385,983,487,879.02
  4. Step 4: Simplify right side
    711,144,196,920.73x = 378,795,131,026,113,780,776,960
  5. Step 5: Solve for x
    x = 378,795,131,026,113,780,776,960/711,144,196,920.73
  6. Step 6: Final answer
    x = 532,655,870,168.53

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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.