Home / 78,176,091.78-107,883,133.77-43,368,783.06

Finding the Fourth Proportional to 78,176,091.78, 107,883,133.77 and 43,368,783.06

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Solution

The fourth proportional to 78,176,091.78, 107,883,133.77 and 43,368,783.06 is: 59,848,991.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,176,091.78 : 107,883,133.77 = 43,368,783.06 : x
  2. Step 2: Convert to fraction form
    78,176,091.78/107,883,133.77 = 43,368,783.06/x
  3. Step 3: Cross multiply
    78,176,091.78x = 107,883,133.77 × 43,368,783.06
  4. Step 4: Simplify right side
    78,176,091.78x = 4,678,760,224,304,090
  5. Step 5: Solve for x
    x = 4,678,760,224,304,090/78,176,091.78
  6. Step 6: Final answer
    x = 59,848,991.14

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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.