Home / 117,014,412.87-161,402,136.26-75,251,279.43

Finding the Fourth Proportional to 117,014,412.87, 161,402,136.26 and 75,251,279.43

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Solution

The fourth proportional to 117,014,412.87, 161,402,136.26 and 75,251,279.43 is: 103,796,762.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,014,412.87 : 161,402,136.26 = 75,251,279.43 : x
  2. Step 2: Convert to fraction form
    117,014,412.87/161,402,136.26 = 75,251,279.43/x
  3. Step 3: Cross multiply
    117,014,412.87x = 161,402,136.26 × 75,251,279.43
  4. Step 4: Simplify right side
    117,014,412.87x = 12,145,717,255,923,940
  5. Step 5: Solve for x
    x = 12,145,717,255,923,940/117,014,412.87
  6. Step 6: Final answer
    x = 103,796,762.79

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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.