Home / 711,144,196,922.42-981,376,517,188.65-385,983,487,880.70

Finding the Fourth Proportional to 711,144,196,922.42, 981,376,517,188.65 and 385,983,487,880.70

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Solution

The fourth proportional to 711,144,196,922.42, 981,376,517,188.65 and 385,983,487,880.70 is: 532,655,870,170.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,144,196,922.42 : 981,376,517,188.65 = 385,983,487,880.70 : x
  2. Step 2: Convert to fraction form
    711,144,196,922.42/981,376,517,188.65 = 385,983,487,880.70/x
  3. Step 3: Cross multiply
    711,144,196,922.42x = 981,376,517,188.65 × 385,983,487,880.70
  4. Step 4: Simplify right side
    711,144,196,922.42x = 378,795,131,028,688,882,106,368
  5. Step 5: Solve for x
    x = 378,795,131,028,688,882,106,368/711,144,196,922.42
  6. Step 6: Final answer
    x = 532,655,870,170.89

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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.