Home / 78,927,232,047.78-118,343,568,792.04-25,121,126,253.54

Finding the Fourth Proportional to 78,927,232,047.78, 118,343,568,792.04 and 25,121,126,253.54

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Solution

The fourth proportional to 78,927,232,047.78, 118,343,568,792.04 and 25,121,126,253.54 is: 37,666,641,231.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,927,232,047.78 : 118,343,568,792.04 = 25,121,126,253.54 : x
  2. Step 2: Convert to fraction form
    78,927,232,047.78/118,343,568,792.04 = 25,121,126,253.54/x
  3. Step 3: Cross multiply
    78,927,232,047.78x = 118,343,568,792.04 × 25,121,126,253.54
  4. Step 4: Simplify right side
    78,927,232,047.78x = 2,972,923,732,919,333,158,912
  5. Step 5: Solve for x
    x = 2,972,923,732,919,333,158,912/78,927,232,047.78
  6. Step 6: Final answer
    x = 37,666,641,231.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.