Home / 21,309,445.80-31,968,315.90-9,178,885.80

Finding the Fourth Proportional to 21,309,445.80, 31,968,315.90 and 9,178,885.80

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Solution

The fourth proportional to 21,309,445.80, 31,968,315.90 and 9,178,885.80 is: 13,770,115.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,309,445.80 : 31,968,315.90 = 9,178,885.80 : x
  2. Step 2: Convert to fraction form
    21,309,445.80/31,968,315.90 = 9,178,885.80/x
  3. Step 3: Cross multiply
    21,309,445.80x = 31,968,315.90 × 9,178,885.80
  4. Step 4: Simplify right side
    21,309,445.80x = 293,433,520,864,424.25
  5. Step 5: Solve for x
    x = 293,433,520,864,424.25/21,309,445.80
  6. Step 6: Final answer
    x = 13,770,115.08

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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.