Home / 30,797,872.07-42,499,781.71-16,858,880.98

Finding the Fourth Proportional to 30,797,872.07, 42,499,781.71 and 16,858,880.98

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Solution

The fourth proportional to 30,797,872.07, 42,499,781.71 and 16,858,880.98 is: 23,264,554.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,797,872.07 : 42,499,781.71 = 16,858,880.98 : x
  2. Step 2: Convert to fraction form
    30,797,872.07/42,499,781.71 = 16,858,880.98/x
  3. Step 3: Cross multiply
    30,797,872.07x = 42,499,781.71 × 16,858,880.98
  4. Step 4: Simplify right side
    30,797,872.07x = 716,498,761,376,474.25
  5. Step 5: Solve for x
    x = 716,498,761,376,474.25/30,797,872.07
  6. Step 6: Final answer
    x = 23,264,554.12

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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.