Home / 57,246,322.86-78,999,865.75-31,140,778.44

Finding the Fourth Proportional to 57,246,322.86, 78,999,865.75 and 31,140,778.44

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Solution

The fourth proportional to 57,246,322.86, 78,999,865.75 and 31,140,778.44 is: 42,974,241.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,246,322.86 : 78,999,865.75 = 31,140,778.44 : x
  2. Step 2: Convert to fraction form
    57,246,322.86/78,999,865.75 = 31,140,778.44/x
  3. Step 3: Cross multiply
    57,246,322.86x = 78,999,865.75 × 31,140,778.44
  4. Step 4: Simplify right side
    57,246,322.86x = 2,460,117,316,110,494.50
  5. Step 5: Solve for x
    x = 2,460,117,316,110,494.50/57,246,322.86
  6. Step 6: Final answer
    x = 42,974,241.72

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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.