Home / 155,585,628.60-214,708,096.52-85,970,400.54

Finding the Fourth Proportional to 155,585,628.60, 214,708,096.52 and 85,970,400.54

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Solution

The fourth proportional to 155,585,628.60, 214,708,096.52 and 85,970,400.54 is: 118,639,113.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,585,628.60 : 214,708,096.52 = 85,970,400.54 : x
  2. Step 2: Convert to fraction form
    155,585,628.60/214,708,096.52 = 85,970,400.54/x
  3. Step 3: Cross multiply
    155,585,628.60x = 214,708,096.52 × 85,970,400.54
  4. Step 4: Simplify right side
    155,585,628.60x = 18,458,541,057,005,384
  5. Step 5: Solve for x
    x = 18,458,541,057,005,384/155,585,628.60
  6. Step 6: Final answer
    x = 118,639,113.54

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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.