Home / 28,156,814.46-42,241,442.49-10,205,451.90

Finding the Fourth Proportional to 28,156,814.46, 42,241,442.49 and 10,205,451.90

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Solution

The fourth proportional to 28,156,814.46, 42,241,442.49 and 10,205,451.90 is: 15,310,432.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,156,814.46 : 42,241,442.49 = 10,205,451.90 : x
  2. Step 2: Convert to fraction form
    28,156,814.46/42,241,442.49 = 10,205,451.90/x
  3. Step 3: Cross multiply
    28,156,814.46x = 42,241,442.49 × 10,205,451.90
  4. Step 4: Simplify right side
    28,156,814.46x = 431,093,009,518,311.25
  5. Step 5: Solve for x
    x = 431,093,009,518,311.25/28,156,814.46
  6. Step 6: Final answer
    x = 15,310,432.58

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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.