Home / 78,335,721,923.66-117,526,636,796.06-25,275,759,662.78

Finding the Fourth Proportional to 78,335,721,923.66, 117,526,636,796.06 and 25,275,759,662.78

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Solution

The fourth proportional to 78,335,721,923.66, 117,526,636,796.06 and 25,275,759,662.78 is: 37,921,078,055.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,335,721,923.66 : 117,526,636,796.06 = 25,275,759,662.78 : x
  2. Step 2: Convert to fraction form
    78,335,721,923.66/117,526,636,796.06 = 25,275,759,662.78/x
  3. Step 3: Cross multiply
    78,335,721,923.66x = 117,526,636,796.06 × 25,275,759,662.78
  4. Step 4: Simplify right side
    78,335,721,923.66x = 2,970,575,025,631,461,376,000
  5. Step 5: Solve for x
    x = 2,970,575,025,631,461,376,000/78,335,721,923.66
  6. Step 6: Final answer
    x = 37,921,078,055.89

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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.