Home / 12,587,390,930.70-18,887,888,840.85-5,601,280,121.10

Finding the Fourth Proportional to 12,587,390,930.70, 18,887,888,840.85 and 5,601,280,121.10

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Solution

The fourth proportional to 12,587,390,930.70, 18,887,888,840.85 and 5,601,280,121.10 is: 8,404,947,210.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587,390,930.70 : 18,887,888,840.85 = 5,601,280,121.10 : x
  2. Step 2: Convert to fraction form
    12,587,390,930.70/18,887,888,840.85 = 5,601,280,121.10/x
  3. Step 3: Cross multiply
    12,587,390,930.70x = 18,887,888,840.85 × 5,601,280,121.10
  4. Step 4: Simplify right side
    12,587,390,930.70x = 105,796,356,293,799,624,704
  5. Step 5: Solve for x
    x = 105,796,356,293,799,624,704/12,587,390,930.70
  6. Step 6: Final answer
    x = 8,404,947,210.77

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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.