Home / 31,248,223.19-43,137,501.20-20,811,607.68

Finding the Fourth Proportional to 31,248,223.19, 43,137,501.20 and 20,811,607.68

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Solution

The fourth proportional to 31,248,223.19, 43,137,501.20 and 20,811,607.68 is: 28,729,977.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,248,223.19 : 43,137,501.20 = 20,811,607.68 : x
  2. Step 2: Convert to fraction form
    31,248,223.19/43,137,501.20 = 20,811,607.68/x
  3. Step 3: Cross multiply
    31,248,223.19x = 43,137,501.20 × 20,811,607.68
  4. Step 4: Simplify right side
    31,248,223.19x = 897,760,751,165,871.12
  5. Step 5: Solve for x
    x = 897,760,751,165,871.12/31,248,223.19
  6. Step 6: Final answer
    x = 28,729,977.57

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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.