Home / 21,851,125.40-32,776,688.10-20,918,151.20

Finding the Fourth Proportional to 21,851,125.40, 32,776,688.10 and 20,918,151.20

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Solution

The fourth proportional to 21,851,125.40, 32,776,688.10 and 20,918,151.20 is: 31,377,226.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,851,125.40 : 32,776,688.10 = 20,918,151.20 : x
  2. Step 2: Convert to fraction form
    21,851,125.40/32,776,688.10 = 20,918,151.20/x
  3. Step 3: Cross multiply
    21,851,125.40x = 32,776,688.10 × 20,918,151.20
  4. Step 4: Simplify right side
    21,851,125.40x = 685,627,717,511,040.75
  5. Step 5: Solve for x
    x = 685,627,717,511,040.75/21,851,125.40
  6. Step 6: Final answer
    x = 31,377,226.80

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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.