Home / 194,017,478.40-290,601,064.80-172,476,403.20

Finding the Fourth Proportional to 194,017,478.40, 290,601,064.80 and 172,476,403.20

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Solution

The fourth proportional to 194,017,478.40, 290,601,064.80 and 172,476,403.20 is: 258,336,655.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,017,478.40 : 290,601,064.80 = 172,476,403.20 : x
  2. Step 2: Convert to fraction form
    194,017,478.40/290,601,064.80 = 172,476,403.20/x
  3. Step 3: Cross multiply
    194,017,478.40x = 290,601,064.80 × 172,476,403.20
  4. Step 4: Simplify right side
    194,017,478.40x = 50,121,826,422,794,128
  5. Step 5: Solve for x
    x = 50,121,826,422,794,128/194,017,478.40
  6. Step 6: Final answer
    x = 258,336,655.21

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.