Home / 8,661,647,811.31-12,990,391,419.48-3,999,041,930.95

Finding the Fourth Proportional to 8,661,647,811.31, 12,990,391,419.48 and 3,999,041,930.95

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Solution

The fourth proportional to 8,661,647,811.31, 12,990,391,419.48 and 3,999,041,930.95 is: 5,997,602,432.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,661,647,811.31 : 12,990,391,419.48 = 3,999,041,930.95 : x
  2. Step 2: Convert to fraction form
    8,661,647,811.31/12,990,391,419.48 = 3,999,041,930.95/x
  3. Step 3: Cross multiply
    8,661,647,811.31x = 12,990,391,419.48 × 3,999,041,930.95
  4. Step 4: Simplify right side
    8,661,647,811.31x = 51,949,119,985,905,139,712
  5. Step 5: Solve for x
    x = 51,949,119,985,905,139,712/8,661,647,811.31
  6. Step 6: Final answer
    x = 5,997,602,432.89

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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.