Home / 72,277,030.74-108,415,543.08-21,159,049.32

Finding the Fourth Proportional to 72,277,030.74, 108,415,543.08 and 21,159,049.32

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Solution

The fourth proportional to 72,277,030.74, 108,415,543.08 and 21,159,049.32 is: 31,738,573.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,277,030.74 : 108,415,543.08 = 21,159,049.32 : x
  2. Step 2: Convert to fraction form
    72,277,030.74/108,415,543.08 = 21,159,049.32/x
  3. Step 3: Cross multiply
    72,277,030.74x = 108,415,543.08 × 21,159,049.32
  4. Step 4: Simplify right side
    72,277,030.74x = 2,293,969,823,084,304.50
  5. Step 5: Solve for x
    x = 2,293,969,823,084,304.50/72,277,030.74
  6. Step 6: Final answer
    x = 31,738,573.09

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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.