Home / 711,454,673.04-981,838,133.20-393,914,916.24

Finding the Fourth Proportional to 711,454,673.04, 981,838,133.20 and 393,914,916.24

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Solution

The fourth proportional to 711,454,673.04, 981,838,133.20 and 393,914,916.24 is: 543,619,573.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    711,454,673.04 : 981,838,133.20 = 393,914,916.24 : x
  2. Step 2: Convert to fraction form
    711,454,673.04/981,838,133.20 = 393,914,916.24/x
  3. Step 3: Cross multiply
    711,454,673.04x = 981,838,133.20 × 393,914,916.24
  4. Step 4: Simplify right side
    711,454,673.04x = 386,760,686,000,715,968
  5. Step 5: Solve for x
    x = 386,760,686,000,715,968/711,454,673.04
  6. Step 6: Final answer
    x = 543,619,573.61

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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.