Home / 699,270,878.56-964,982,191.44-385,996,989.28

Finding the Fourth Proportional to 699,270,878.56, 964,982,191.44 and 385,996,989.28

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Solution

The fourth proportional to 699,270,878.56, 964,982,191.44 and 385,996,989.28 is: 532,669,430.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,270,878.56 : 964,982,191.44 = 385,996,989.28 : x
  2. Step 2: Convert to fraction form
    699,270,878.56/964,982,191.44 = 385,996,989.28/x
  3. Step 3: Cross multiply
    699,270,878.56x = 964,982,191.44 × 385,996,989.28
  4. Step 4: Simplify right side
    699,270,878.56x = 372,480,220,604,656,576
  5. Step 5: Solve for x
    x = 372,480,220,604,656,576/699,270,878.56
  6. Step 6: Final answer
    x = 532,669,430.44

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