Home / 31,483,590.76-43,458,225.06-18,435,043.72

Finding the Fourth Proportional to 31,483,590.76, 43,458,225.06 and 18,435,043.72

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Solution

The fourth proportional to 31,483,590.76, 43,458,225.06 and 18,435,043.72 is: 25,446,725.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,483,590.76 : 43,458,225.06 = 18,435,043.72 : x
  2. Step 2: Convert to fraction form
    31,483,590.76/43,458,225.06 = 18,435,043.72/x
  3. Step 3: Cross multiply
    31,483,590.76x = 43,458,225.06 × 18,435,043.72
  4. Step 4: Simplify right side
    31,483,590.76x = 801,154,278,974,699.62
  5. Step 5: Solve for x
    x = 801,154,278,974,699.62/31,483,590.76
  6. Step 6: Final answer
    x = 25,446,725.09

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Double scale
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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.