Home / 30,805,439.64-42,509,890.05-16,864,122.06

Finding the Fourth Proportional to 30,805,439.64, 42,509,890.05 and 16,864,122.06

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Solution

The fourth proportional to 30,805,439.64, 42,509,890.05 and 16,864,122.06 is: 23,271,603.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,805,439.64 : 42,509,890.05 = 16,864,122.06 : x
  2. Step 2: Convert to fraction form
    30,805,439.64/42,509,890.05 = 16,864,122.06/x
  3. Step 3: Cross multiply
    30,805,439.64x = 42,509,890.05 × 16,864,122.06
  4. Step 4: Simplify right side
    30,805,439.64x = 716,891,974,560,379.38
  5. Step 5: Solve for x
    x = 716,891,974,560,379.38/30,805,439.64
  6. Step 6: Final answer
    x = 23,271,603.42

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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.