Home / 28,487,321.68-42,731,035.92-6,921,941.60

Finding the Fourth Proportional to 28,487,321.68, 42,731,035.92 and 6,921,941.60

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Solution

The fourth proportional to 28,487,321.68, 42,731,035.92 and 6,921,941.60 is: 10,382,925.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,487,321.68 : 42,731,035.92 = 6,921,941.60 : x
  2. Step 2: Convert to fraction form
    28,487,321.68/42,731,035.92 = 6,921,941.60/x
  3. Step 3: Cross multiply
    28,487,321.68x = 42,731,035.92 × 6,921,941.60
  4. Step 4: Simplify right side
    28,487,321.68x = 295,781,735,145,742.25
  5. Step 5: Solve for x
    x = 295,781,735,145,742.25/28,487,321.68
  6. Step 6: Final answer
    x = 10,382,925.38

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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.