Home / 155,440,253.25-214,417,625.81-100,436,109.75

Finding the Fourth Proportional to 155,440,253.25, 214,417,625.81 and 100,436,109.75

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Solution

The fourth proportional to 155,440,253.25, 214,417,625.81 and 100,436,109.75 is: 138,543,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,440,253.25 : 214,417,625.81 = 100,436,109.75 : x
  2. Step 2: Convert to fraction form
    155,440,253.25/214,417,625.81 = 100,436,109.75/x
  3. Step 3: Cross multiply
    155,440,253.25x = 214,417,625.81 × 100,436,109.75
  4. Step 4: Simplify right side
    155,440,253.25x = 21,535,272,197,685,412
  5. Step 5: Solve for x
    x = 21,535,272,197,685,412/155,440,253.25
  6. Step 6: Final answer
    x = 138,543,728.20

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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.