Home / 78,176,090.28-107,883,131.70-43,368,781.56

Finding the Fourth Proportional to 78,176,090.28, 107,883,131.70 and 43,368,781.56

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Solution

The fourth proportional to 78,176,090.28, 107,883,131.70 and 43,368,781.56 is: 59,848,989.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,176,090.28 : 107,883,131.70 = 43,368,781.56 : x
  2. Step 2: Convert to fraction form
    78,176,090.28/107,883,131.70 = 43,368,781.56/x
  3. Step 3: Cross multiply
    78,176,090.28x = 107,883,131.70 × 43,368,781.56
  4. Step 4: Simplify right side
    78,176,090.28x = 4,678,759,972,706,012
  5. Step 5: Solve for x
    x = 4,678,759,972,706,012/78,176,090.28
  6. Step 6: Final answer
    x = 59,848,989.07

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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.