Home / 31,709,873.40-43,758,881.01-18,657,977.68

Finding the Fourth Proportional to 31,709,873.40, 43,758,881.01 and 18,657,977.68

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Solution

The fourth proportional to 31,709,873.40, 43,758,881.01 and 18,657,977.68 is: 25,747,571.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,709,873.40 : 43,758,881.01 = 18,657,977.68 : x
  2. Step 2: Convert to fraction form
    31,709,873.40/43,758,881.01 = 18,657,977.68/x
  3. Step 3: Cross multiply
    31,709,873.40x = 43,758,881.01 × 18,657,977.68
  4. Step 4: Simplify right side
    31,709,873.40x = 816,452,225,241,054.38
  5. Step 5: Solve for x
    x = 816,452,225,241,054.38/31,709,873.40
  6. Step 6: Final answer
    x = 25,747,571.27

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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.