Home / 77,828,192.45-107,403,122.05-42,546,423.89

Finding the Fourth Proportional to 77,828,192.45, 107,403,122.05 and 42,546,423.89

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Solution

The fourth proportional to 77,828,192.45, 107,403,122.05 and 42,546,423.89 is: 58,714,183.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,828,192.45 : 107,403,122.05 = 42,546,423.89 : x
  2. Step 2: Convert to fraction form
    77,828,192.45/107,403,122.05 = 42,546,423.89/x
  3. Step 3: Cross multiply
    77,828,192.45x = 107,403,122.05 × 42,546,423.89
  4. Step 4: Simplify right side
    77,828,192.45x = 4,569,618,757,907,187
  5. Step 5: Solve for x
    x = 4,569,618,757,907,187/77,828,192.45
  6. Step 6: Final answer
    x = 58,714,183.30

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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.