Home / 72,277,010.92-108,415,513.34-21,159,029.53

Finding the Fourth Proportional to 72,277,010.92, 108,415,513.34 and 21,159,029.53

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Solution

The fourth proportional to 72,277,010.92, 108,415,513.34 and 21,159,029.53 is: 31,738,543.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,277,010.92 : 108,415,513.34 = 21,159,029.53 : x
  2. Step 2: Convert to fraction form
    72,277,010.92/108,415,513.34 = 21,159,029.53/x
  3. Step 3: Cross multiply
    72,277,010.92x = 108,415,513.34 × 21,159,029.53
  4. Step 4: Simplify right side
    72,277,010.92x = 2,293,967,048,271,169
  5. Step 5: Solve for x
    x = 2,293,967,048,271,169/72,277,010.92
  6. Step 6: Final answer
    x = 31,738,543.41

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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.