Home / 1,317,933,885.56-1,818,776,540.30-723,213,166.86

Finding the Fourth Proportional to 1,317,933,885.56, 1,818,776,540.30 and 723,213,166.86

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Solution

The fourth proportional to 1,317,933,885.56, 1,818,776,540.30 and 723,213,166.86 is: 998,049,413.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,933,885.56 : 1,818,776,540.30 = 723,213,166.86 : x
  2. Step 2: Convert to fraction form
    1,317,933,885.56/1,818,776,540.30 = 723,213,166.86/x
  3. Step 3: Cross multiply
    1,317,933,885.56x = 1,818,776,540.30 × 723,213,166.86
  4. Step 4: Simplify right side
    1,317,933,885.56x = 1,315,363,141,517,421,312
  5. Step 5: Solve for x
    x = 1,315,363,141,517,421,312/1,317,933,885.56
  6. Step 6: Final answer
    x = 998,049,413.51

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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.