Home / 28,317,708.95-42,476,442.20-7,847,370.05

Finding the Fourth Proportional to 28,317,708.95, 42,476,442.20 and 7,847,370.05

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Solution

The fourth proportional to 28,317,708.95, 42,476,442.20 and 7,847,370.05 is: 11,771,021.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,317,708.95 : 42,476,442.20 = 7,847,370.05 : x
  2. Step 2: Convert to fraction form
    28,317,708.95/42,476,442.20 = 7,847,370.05/x
  3. Step 3: Cross multiply
    28,317,708.95x = 42,476,442.20 × 7,847,370.05
  4. Step 4: Simplify right side
    28,317,708.95x = 333,328,360,311,599.25
  5. Step 5: Solve for x
    x = 333,328,360,311,599.25/28,317,708.95
  6. Step 6: Final answer
    x = 11,771,021.48

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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.