Home / 31,378,295.04-43,289,595.36-18,145,026.72

Finding the Fourth Proportional to 31,378,295.04, 43,289,595.36 and 18,145,026.72

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Solution

The fourth proportional to 31,378,295.04, 43,289,595.36 and 18,145,026.72 is: 25,032,936.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,378,295.04 : 43,289,595.36 = 18,145,026.72 : x
  2. Step 2: Convert to fraction form
    31,378,295.04/43,289,595.36 = 18,145,026.72/x
  3. Step 3: Cross multiply
    31,378,295.04x = 43,289,595.36 × 18,145,026.72
  4. Step 4: Simplify right side
    31,378,295.04x = 785,490,864,505,188
  5. Step 5: Solve for x
    x = 785,490,864,505,188/31,378,295.04
  6. Step 6: Final answer
    x = 25,032,936.41

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1.5x scale

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.