Home / 57,246,319.49-78,999,861.11-31,140,775.05

Finding the Fourth Proportional to 57,246,319.49, 78,999,861.11 and 31,140,775.05

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Solution

The fourth proportional to 57,246,319.49, 78,999,861.11 and 31,140,775.05 is: 42,974,237.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,246,319.49 : 78,999,861.11 = 31,140,775.05 : x
  2. Step 2: Convert to fraction form
    57,246,319.49/78,999,861.11 = 31,140,775.05/x
  3. Step 3: Cross multiply
    57,246,319.49x = 78,999,861.11 × 31,140,775.05
  4. Step 4: Simplify right side
    57,246,319.49x = 2,460,116,903,807,753.50
  5. Step 5: Solve for x
    x = 2,460,116,903,807,753.50/57,246,319.49
  6. Step 6: Final answer
    x = 42,974,237.05

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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.