Home / 79,309,718.89-118,958,962.31-21,016,106.21

Finding the Fourth Proportional to 79,309,718.89, 118,958,962.31 and 21,016,106.21

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Solution

The fourth proportional to 79,309,718.89, 118,958,962.31 and 21,016,106.21 is: 31,522,671.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,309,718.89 : 118,958,962.31 = 21,016,106.21 : x
  2. Step 2: Convert to fraction form
    79,309,718.89/118,958,962.31 = 21,016,106.21/x
  3. Step 3: Cross multiply
    79,309,718.89x = 118,958,962.31 × 21,016,106.21
  4. Step 4: Simplify right side
    79,309,718.89x = 2,500,054,186,809,474
  5. Step 5: Solve for x
    x = 2,500,054,186,809,474/79,309,718.89
  6. Step 6: Final answer
    x = 31,522,671.14

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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.