Home / 21,261,790.74-31,905,064-8,964,982.74

Finding the Fourth Proportional to 21,261,790.74, 31,905,064 and 8,964,982.74

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Solution

The fourth proportional to 21,261,790.74, 31,905,064 and 8,964,982.74 is: 13,452,693.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,261,790.74 : 31,905,064 = 8,964,982.74 : x
  2. Step 2: Convert to fraction form
    21,261,790.74/31,905,064 = 8,964,982.74/x
  3. Step 3: Cross multiply
    21,261,790.74x = 31,905,064 × 8,964,982.74
  4. Step 4: Simplify right side
    21,261,790.74x = 286,028,348,078,595.38
  5. Step 5: Solve for x
    x = 286,028,348,078,595.38/21,261,790.74
  6. Step 6: Final answer
    x = 13,452,693.22

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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.