Home / 146,447,421.78-220,014,141.93-138,174,525.66

Finding the Fourth Proportional to 146,447,421.78, 220,014,141.93 and 138,174,525.66

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Solution

The fourth proportional to 146,447,421.78, 220,014,141.93 and 138,174,525.66 is: 207,585,420.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,447,421.78 : 220,014,141.93 = 138,174,525.66 : x
  2. Step 2: Convert to fraction form
    146,447,421.78/220,014,141.93 = 138,174,525.66/x
  3. Step 3: Cross multiply
    146,447,421.78x = 220,014,141.93 × 138,174,525.66
  4. Step 4: Simplify right side
    146,447,421.78x = 30,400,349,699,669,668
  5. Step 5: Solve for x
    x = 30,400,349,699,669,668/146,447,421.78
  6. Step 6: Final answer
    x = 207,585,420.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.