Home / 28,405,702.61-42,602,369.13-7,655,656.42

Finding the Fourth Proportional to 28,405,702.61, 42,602,369.13 and 7,655,656.42

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Solution

The fourth proportional to 28,405,702.61, 42,602,369.13 and 7,655,656.42 is: 11,481,817.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,405,702.61 : 42,602,369.13 = 7,655,656.42 : x
  2. Step 2: Convert to fraction form
    28,405,702.61/42,602,369.13 = 7,655,656.42/x
  3. Step 3: Cross multiply
    28,405,702.61x = 42,602,369.13 × 7,655,656.42
  4. Step 4: Simplify right side
    28,405,702.61x = 326,149,100,630,788.44
  5. Step 5: Solve for x
    x = 326,149,100,630,788.44/28,405,702.61
  6. Step 6: Final answer
    x = 11,481,817.76

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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.