Home / 155,385,693.54-214,432,224.75-85,771,055.97

Finding the Fourth Proportional to 155,385,693.54, 214,432,224.75 and 85,771,055.97

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Solution

The fourth proportional to 155,385,693.54, 214,432,224.75 and 85,771,055.97 is: 118,364,039.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,385,693.54 : 214,432,224.75 = 85,771,055.97 : x
  2. Step 2: Convert to fraction form
    155,385,693.54/214,432,224.75 = 85,771,055.97/x
  3. Step 3: Cross multiply
    155,385,693.54x = 214,432,224.75 × 85,771,055.97
  4. Step 4: Simplify right side
    155,385,693.54x = 18,392,078,350,803,868
  5. Step 5: Solve for x
    x = 18,392,078,350,803,868/155,385,693.54
  6. Step 6: Final answer
    x = 118,364,039.39

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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.