Home / 38,969,748.65-53,776,065.02-21,328,615.13

Finding the Fourth Proportional to 38,969,748.65, 53,776,065.02 and 21,328,615.13

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Solution

The fourth proportional to 38,969,748.65, 53,776,065.02 and 21,328,615.13 is: 29,432,291.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,969,748.65 : 53,776,065.02 = 21,328,615.13 : x
  2. Step 2: Convert to fraction form
    38,969,748.65/53,776,065.02 = 21,328,615.13/x
  3. Step 3: Cross multiply
    38,969,748.65x = 53,776,065.02 × 21,328,615.13
  4. Step 4: Simplify right side
    38,969,748.65x = 1,146,968,993,910,792.75
  5. Step 5: Solve for x
    x = 1,146,968,993,910,792.75/38,969,748.65
  6. Step 6: Final answer
    x = 29,432,291.29

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.