Home / 76,388,040.70-105,418,042.45-42,903,420.59

Finding the Fourth Proportional to 76,388,040.70, 105,418,042.45 and 42,903,420.59

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Solution

The fourth proportional to 76,388,040.70, 105,418,042.45 and 42,903,420.59 is: 59,208,150.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,388,040.70 : 105,418,042.45 = 42,903,420.59 : x
  2. Step 2: Convert to fraction form
    76,388,040.70/105,418,042.45 = 42,903,420.59/x
  3. Step 3: Cross multiply
    76,388,040.70x = 105,418,042.45 × 42,903,420.59
  4. Step 4: Simplify right side
    76,388,040.70x = 4,522,794,613,163,111
  5. Step 5: Solve for x
    x = 4,522,794,613,163,111/76,388,040.70
  6. Step 6: Final answer
    x = 59,208,150.54

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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.