Home / 28,487,353.12-42,731,083.20-6,921,973.12

Finding the Fourth Proportional to 28,487,353.12, 42,731,083.20 and 6,921,973.12

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Solution

The fourth proportional to 28,487,353.12, 42,731,083.20 and 6,921,973.12 is: 10,382,972.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,487,353.12 : 42,731,083.20 = 6,921,973.12 : x
  2. Step 2: Convert to fraction form
    28,487,353.12/42,731,083.20 = 6,921,973.12/x
  3. Step 3: Cross multiply
    28,487,353.12x = 42,731,083.20 × 6,921,973.12
  4. Step 4: Simplify right side
    28,487,353.12x = 295,783,409,298,883.62
  5. Step 5: Solve for x
    x = 295,783,409,298,883.62/28,487,353.12
  6. Step 6: Final answer
    x = 10,382,972.68

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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.