Home / 21,181,823.68-31,783,466.40-9,666,014.80

Finding the Fourth Proportional to 21,181,823.68, 31,783,466.40 and 9,666,014.80

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Solution

The fourth proportional to 21,181,823.68, 31,783,466.40 and 9,666,014.80 is: 14,503,919.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,181,823.68 : 31,783,466.40 = 9,666,014.80 : x
  2. Step 2: Convert to fraction form
    21,181,823.68/31,783,466.40 = 9,666,014.80/x
  3. Step 3: Cross multiply
    21,181,823.68x = 31,783,466.40 × 9,666,014.80
  4. Step 4: Simplify right side
    21,181,823.68x = 307,219,456,617,702.75
  5. Step 5: Solve for x
    x = 307,219,456,617,702.75/21,181,823.68
  6. Step 6: Final answer
    x = 14,503,919.08

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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.