Home / 19,319,188.40-28,979,774.88-4,942,380.16

Finding the Fourth Proportional to 19,319,188.40, 28,979,774.88 and 4,942,380.16

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Solution

The fourth proportional to 19,319,188.40, 28,979,774.88 and 4,942,380.16 is: 7,413,824.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,319,188.40 : 28,979,774.88 = 4,942,380.16 : x
  2. Step 2: Convert to fraction form
    19,319,188.40/28,979,774.88 = 4,942,380.16/x
  3. Step 3: Cross multiply
    19,319,188.40x = 28,979,774.88 × 4,942,380.16
  4. Step 4: Simplify right side
    19,319,188.40x = 143,229,064,408,178.38
  5. Step 5: Solve for x
    x = 143,229,064,408,178.38/19,319,188.40
  6. Step 6: Final answer
    x = 7,413,824.09

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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.