Home / 12,778,436.53-17,634,956.88-6,977,756.80

Finding the Fourth Proportional to 12,778,436.53, 17,634,956.88 and 6,977,756.80

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Solution

The fourth proportional to 12,778,436.53, 17,634,956.88 and 6,977,756.80 is: 9,629,694.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,778,436.53 : 17,634,956.88 = 6,977,756.80 : x
  2. Step 2: Convert to fraction form
    12,778,436.53/17,634,956.88 = 6,977,756.80/x
  3. Step 3: Cross multiply
    12,778,436.53x = 17,634,956.88 × 6,977,756.80
  4. Step 4: Simplify right side
    12,778,436.53x = 123,052,440,287,126.77
  5. Step 5: Solve for x
    x = 123,052,440,287,126.77/12,778,436.53
  6. Step 6: Final answer
    x = 9,629,694.52

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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.