Home / 112,721,369.88-169,028,762.49-43,666,516.83

Finding the Fourth Proportional to 112,721,369.88, 169,028,762.49 and 43,666,516.83

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Solution

The fourth proportional to 112,721,369.88, 169,028,762.49 and 43,666,516.83 is: 65,479,130.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,721,369.88 : 169,028,762.49 = 43,666,516.83 : x
  2. Step 2: Convert to fraction form
    112,721,369.88/169,028,762.49 = 43,666,516.83/x
  3. Step 3: Cross multiply
    112,721,369.88x = 169,028,762.49 × 43,666,516.83
  4. Step 4: Simplify right side
    112,721,369.88x = 7,380,897,302,023,658
  5. Step 5: Solve for x
    x = 7,380,897,302,023,658/112,721,369.88
  6. Step 6: Final answer
    x = 65,479,130.62

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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.