Home / 12,643,072.21-18,956,928.30-4,957,508.98

Finding the Fourth Proportional to 12,643,072.21, 18,956,928.30 and 4,957,508.98

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Solution

The fourth proportional to 12,643,072.21, 18,956,928.30 and 4,957,508.98 is: 7,433,252.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,643,072.21 : 18,956,928.30 = 4,957,508.98 : x
  2. Step 2: Convert to fraction form
    12,643,072.21/18,956,928.30 = 4,957,508.98/x
  3. Step 3: Cross multiply
    12,643,072.21x = 18,956,928.30 × 4,957,508.98
  4. Step 4: Simplify right side
    12,643,072.21x = 93,979,142,280,466.14
  5. Step 5: Solve for x
    x = 93,979,142,280,466.14/12,643,072.21
  6. Step 6: Final answer
    x = 7,433,252.04

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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.