Home / 21,235,966.83-31,833,767.88-13,538,007.50

Finding the Fourth Proportional to 21,235,966.83, 31,833,767.88 and 13,538,007.50

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Solution

The fourth proportional to 21,235,966.83, 31,833,767.88 and 13,538,007.50 is: 20,294,144.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,235,966.83 : 31,833,767.88 = 13,538,007.50 : x
  2. Step 2: Convert to fraction form
    21,235,966.83/31,833,767.88 = 13,538,007.50/x
  3. Step 3: Cross multiply
    21,235,966.83x = 31,833,767.88 × 13,538,007.50
  4. Step 4: Simplify right side
    21,235,966.83x = 430,965,788,153,530.25
  5. Step 5: Solve for x
    x = 430,965,788,153,530.25/21,235,966.83
  6. Step 6: Final answer
    x = 20,294,144.91

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.