Home / 13,291,964,203.34-18,342,965,865.50-7,188,316,761.92

Finding the Fourth Proportional to 13,291,964,203.34, 18,342,965,865.50 and 7,188,316,761.92

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Solution

The fourth proportional to 13,291,964,203.34, 18,342,965,865.50 and 7,188,316,761.92 is: 9,919,907,018.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,291,964,203.34 : 18,342,965,865.50 = 7,188,316,761.92 : x
  2. Step 2: Convert to fraction form
    13,291,964,203.34/18,342,965,865.50 = 7,188,316,761.92/x
  3. Step 3: Cross multiply
    13,291,964,203.34x = 18,342,965,865.50 × 7,188,316,761.92
  4. Step 4: Simplify right side
    13,291,964,203.34x = 131,855,048,994,172,387,328
  5. Step 5: Solve for x
    x = 131,855,048,994,172,387,328/13,291,964,203.34
  6. Step 6: Final answer
    x = 9,919,907,018.79

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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.