Home / 77,972,683.90-107,598,040.86-42,683,662.30

Finding the Fourth Proportional to 77,972,683.90, 107,598,040.86 and 42,683,662.30

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Solution

The fourth proportional to 77,972,683.90, 107,598,040.86 and 42,683,662.30 is: 58,901,120.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,972,683.90 : 107,598,040.86 = 42,683,662.30 : x
  2. Step 2: Convert to fraction form
    77,972,683.90/107,598,040.86 = 42,683,662.30/x
  3. Step 3: Cross multiply
    77,972,683.90x = 107,598,040.86 × 42,683,662.30
  4. Step 4: Simplify right side
    77,972,683.90x = 4,592,678,440,048,353
  5. Step 5: Solve for x
    x = 4,592,678,440,048,353/77,972,683.90
  6. Step 6: Final answer
    x = 58,901,120.37

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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.