Home / 138,857,468.86-208,297,537.76-69,734,723.10

Finding the Fourth Proportional to 138,857,468.86, 208,297,537.76 and 69,734,723.10

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Solution

The fourth proportional to 138,857,468.86, 208,297,537.76 and 69,734,723.10 is: 104,607,776.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,857,468.86 : 208,297,537.76 = 69,734,723.10 : x
  2. Step 2: Convert to fraction form
    138,857,468.86/208,297,537.76 = 69,734,723.10/x
  3. Step 3: Cross multiply
    138,857,468.86x = 208,297,537.76 × 69,734,723.10
  4. Step 4: Simplify right side
    138,857,468.86x = 14,525,571,118,105,392
  5. Step 5: Solve for x
    x = 14,525,571,118,105,392/138,857,468.86
  6. Step 6: Final answer
    x = 104,607,776.86

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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.