Home / 155,706,362.91-214,872,416.28-85,142,198.39

Finding the Fourth Proportional to 155,706,362.91, 214,872,416.28 and 85,142,198.39

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Solution

The fourth proportional to 155,706,362.91, 214,872,416.28 and 85,142,198.39 is: 117,494,940.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,706,362.91 : 214,872,416.28 = 85,142,198.39 : x
  2. Step 2: Convert to fraction form
    155,706,362.91/214,872,416.28 = 85,142,198.39/x
  3. Step 3: Cross multiply
    155,706,362.91x = 214,872,416.28 × 85,142,198.39
  4. Step 4: Simplify right side
    155,706,362.91x = 18,294,709,894,376,064
  5. Step 5: Solve for x
    x = 18,294,709,894,376,064/155,706,362.91
  6. Step 6: Final answer
    x = 117,494,940.81

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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.