Home / 101,412,941.20-139,953,026.92-57,359,078

Finding the Fourth Proportional to 101,412,941.20, 139,953,026.92 and 57,359,078

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Solution

The fourth proportional to 101,412,941.20, 139,953,026.92 and 57,359,078 is: 79,157,319.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,412,941.20 : 139,953,026.92 = 57,359,078 : x
  2. Step 2: Convert to fraction form
    101,412,941.20/139,953,026.92 = 57,359,078/x
  3. Step 3: Cross multiply
    101,412,941.20x = 139,953,026.92 × 57,359,078
  4. Step 4: Simplify right side
    101,412,941.20x = 8,027,576,587,440,379
  5. Step 5: Solve for x
    x = 8,027,576,587,440,379/101,412,941.20
  6. Step 6: Final answer
    x = 79,157,319.49

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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.