Home / 12,115,807,501.30-18,173,711,251.95-5,585,460,493.30

Finding the Fourth Proportional to 12,115,807,501.30, 18,173,711,251.95 and 5,585,460,493.30

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Solution

The fourth proportional to 12,115,807,501.30, 18,173,711,251.95 and 5,585,460,493.30 is: 8,378,190,739.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115,807,501.30 : 18,173,711,251.95 = 5,585,460,493.30 : x
  2. Step 2: Convert to fraction form
    12,115,807,501.30/18,173,711,251.95 = 5,585,460,493.30/x
  3. Step 3: Cross multiply
    12,115,807,501.30x = 18,173,711,251.95 × 5,585,460,493.30
  4. Step 4: Simplify right side
    12,115,807,501.30x = 101,508,546,214,408,421,376
  5. Step 5: Solve for x
    x = 101,508,546,214,408,421,376/12,115,807,501.30
  6. Step 6: Final answer
    x = 8,378,190,739.95

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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.