Home / 21,120,816.40-31,625,237.40-16,641,840.40

Finding the Fourth Proportional to 21,120,816.40, 31,625,237.40 and 16,641,840.40

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Solution

The fourth proportional to 21,120,816.40, 31,625,237.40 and 16,641,840.40 is: 24,918,646.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,120,816.40 : 31,625,237.40 = 16,641,840.40 : x
  2. Step 2: Convert to fraction form
    21,120,816.40/31,625,237.40 = 16,641,840.40/x
  3. Step 3: Cross multiply
    21,120,816.40x = 31,625,237.40 × 16,641,840.40
  4. Step 4: Simplify right side
    21,120,816.40x = 526,302,153,422,910.94
  5. Step 5: Solve for x
    x = 526,302,153,422,910.94/21,120,816.40
  6. Step 6: Final answer
    x = 24,918,646.30

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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.