Home / 57,246,319.55-78,999,861.20-31,140,775.12

Finding the Fourth Proportional to 57,246,319.55, 78,999,861.20 and 31,140,775.12

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Solution

The fourth proportional to 57,246,319.55, 78,999,861.20 and 31,140,775.12 is: 42,974,237.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,246,319.55 : 78,999,861.20 = 31,140,775.12 : x
  2. Step 2: Convert to fraction form
    57,246,319.55/78,999,861.20 = 31,140,775.12/x
  3. Step 3: Cross multiply
    57,246,319.55x = 78,999,861.20 × 31,140,775.12
  4. Step 4: Simplify right side
    57,246,319.55x = 2,460,116,911,589,710
  5. Step 5: Solve for x
    x = 2,460,116,911,589,710/57,246,319.55
  6. Step 6: Final answer
    x = 42,974,237.14

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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.