Home / 57,188,305.95-78,920,661.20-31,082,815.95

Finding the Fourth Proportional to 57,188,305.95, 78,920,661.20 and 31,082,815.95

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Solution

The fourth proportional to 57,188,305.95, 78,920,661.20 and 31,082,815.95 is: 42,894,720.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,188,305.95 : 78,920,661.20 = 31,082,815.95 : x
  2. Step 2: Convert to fraction form
    57,188,305.95/78,920,661.20 = 31,082,815.95/x
  3. Step 3: Cross multiply
    57,188,305.95x = 78,920,661.20 × 31,082,815.95
  4. Step 4: Simplify right side
    57,188,305.95x = 2,453,076,386,576,492
  5. Step 5: Solve for x
    x = 2,453,076,386,576,492/57,188,305.95
  6. Step 6: Final answer
    x = 42,894,720.27

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.