Home / 57,188,317.45-78,920,677.11-31,082,827.45

Finding the Fourth Proportional to 57,188,317.45, 78,920,677.11 and 31,082,827.45

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Solution

The fourth proportional to 57,188,317.45, 78,920,677.11 and 31,082,827.45 is: 42,894,736.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,188,317.45 : 78,920,677.11 = 31,082,827.45 : x
  2. Step 2: Convert to fraction form
    57,188,317.45/78,920,677.11 = 31,082,827.45/x
  3. Step 3: Cross multiply
    57,188,317.45x = 78,920,677.11 × 31,082,827.45
  4. Step 4: Simplify right side
    57,188,317.45x = 2,453,077,788,847,294.50
  5. Step 5: Solve for x
    x = 2,453,077,788,847,294.50/57,188,317.45
  6. Step 6: Final answer
    x = 42,894,736.17

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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.