Home / 618,460,561.71-853,476,121.04-340,006,822.83

Finding the Fourth Proportional to 618,460,561.71, 853,476,121.04 and 340,006,822.83

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Solution

The fourth proportional to 618,460,561.71, 853,476,121.04 and 340,006,822.83 is: 469,209,715.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    618,460,561.71 : 853,476,121.04 = 340,006,822.83 : x
  2. Step 2: Convert to fraction form
    618,460,561.71/853,476,121.04 = 340,006,822.83/x
  3. Step 3: Cross multiply
    618,460,561.71x = 853,476,121.04 × 340,006,822.83
  4. Step 4: Simplify right side
    618,460,561.71x = 290,187,704,274,382,848
  5. Step 5: Solve for x
    x = 290,187,704,274,382,848/618,460,561.71
  6. Step 6: Final answer
    x = 469,209,715.61

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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.