Home / 77,972,676.05-107,598,030.03-42,683,654.45

Finding the Fourth Proportional to 77,972,676.05, 107,598,030.03 and 42,683,654.45

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Solution

The fourth proportional to 77,972,676.05, 107,598,030.03 and 42,683,654.45 is: 58,901,109.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,972,676.05 : 107,598,030.03 = 42,683,654.45 : x
  2. Step 2: Convert to fraction form
    77,972,676.05/107,598,030.03 = 42,683,654.45/x
  3. Step 3: Cross multiply
    77,972,676.05x = 107,598,030.03 × 42,683,654.45
  4. Step 4: Simplify right side
    77,972,676.05x = 4,592,677,132,923,317
  5. Step 5: Solve for x
    x = 4,592,677,132,923,317/77,972,676.05
  6. Step 6: Final answer
    x = 58,901,109.54

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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.