Home / 711,144,196,922.40-981,376,517,188.64-385,983,487,880.70

Finding the Fourth Proportional to 711,144,196,922.40, 981,376,517,188.64 and 385,983,487,880.70

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Solution

The fourth proportional to 711,144,196,922.40, 981,376,517,188.64 and 385,983,487,880.70 is: 532,655,870,170.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,144,196,922.40 : 981,376,517,188.64 = 385,983,487,880.70 : x
  2. Step 2: Convert to fraction form
    711,144,196,922.40/981,376,517,188.64 = 385,983,487,880.70/x
  3. Step 3: Cross multiply
    711,144,196,922.40x = 981,376,517,188.64 × 385,983,487,880.70
  4. Step 4: Simplify right side
    711,144,196,922.40x = 378,795,131,028,684,989,792,256
  5. Step 5: Solve for x
    x = 378,795,131,028,684,989,792,256/711,144,196,922.40
  6. Step 6: Final answer
    x = 532,655,870,170.90

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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.