Home / 155,632,815.45-214,773,103.32-85,068,889.08

Finding the Fourth Proportional to 155,632,815.45, 214,773,103.32 and 85,068,889.08

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Solution

The fourth proportional to 155,632,815.45, 214,773,103.32 and 85,068,889.08 is: 117,394,967.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,632,815.45 : 214,773,103.32 = 85,068,889.08 : x
  2. Step 2: Convert to fraction form
    155,632,815.45/214,773,103.32 = 85,068,889.08/x
  3. Step 3: Cross multiply
    155,632,815.45x = 214,773,103.32 × 85,068,889.08
  4. Step 4: Simplify right side
    155,632,815.45x = 18,270,509,303,696,460
  5. Step 5: Solve for x
    x = 18,270,509,303,696,460/155,632,815.45
  6. Step 6: Final answer
    x = 117,394,967.45

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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.