Home / 21,063,313.30-31,594,969.95-18,228,961.30

Finding the Fourth Proportional to 21,063,313.30, 31,594,969.95 and 18,228,961.30

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Solution

The fourth proportional to 21,063,313.30, 31,594,969.95 and 18,228,961.30 is: 27,343,441.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,063,313.30 : 31,594,969.95 = 18,228,961.30 : x
  2. Step 2: Convert to fraction form
    21,063,313.30/31,594,969.95 = 18,228,961.30/x
  3. Step 3: Cross multiply
    21,063,313.30x = 31,594,969.95 × 18,228,961.30
  4. Step 4: Simplify right side
    21,063,313.30x = 575,943,484,493,213
  5. Step 5: Solve for x
    x = 575,943,484,493,213/21,063,313.30
  6. Step 6: Final answer
    x = 27,343,441.95

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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.