Home / 77,405,693.10-106,819,825.10-42,598,383.42

Finding the Fourth Proportional to 77,405,693.10, 106,819,825.10 and 42,598,383.42

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Solution

The fourth proportional to 77,405,693.10, 106,819,825.10 and 42,598,383.42 is: 58,785,751.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,405,693.10 : 106,819,825.10 = 42,598,383.42 : x
  2. Step 2: Convert to fraction form
    77,405,693.10/106,819,825.10 = 42,598,383.42/x
  3. Step 3: Cross multiply
    77,405,693.10x = 106,819,825.10 × 42,598,383.42
  4. Step 4: Simplify right side
    77,405,693.10x = 4,550,351,866,467,140
  5. Step 5: Solve for x
    x = 4,550,351,866,467,140/77,405,693.10
  6. Step 6: Final answer
    x = 58,785,751.85

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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.