Home / 711,389,953-981,718,135.14-385,807,105

Finding the Fourth Proportional to 711,389,953, 981,718,135.14 and 385,807,105

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Solution

The fourth proportional to 711,389,953, 981,718,135.14 and 385,807,105 is: 532,413,804.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,389,953 : 981,718,135.14 = 385,807,105 : x
  2. Step 2: Convert to fraction form
    711,389,953/981,718,135.14 = 385,807,105/x
  3. Step 3: Cross multiply
    711,389,953x = 981,718,135.14 × 385,807,105
  4. Step 4: Simplify right side
    711,389,953x = 378,753,831,644,362,176
  5. Step 5: Solve for x
    x = 378,753,831,644,362,176/711,389,953
  6. Step 6: Final answer
    x = 532,413,804.90

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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.