Home / 79,442,829.09-109,680,014.12-62,989,415.73

Finding the Fourth Proportional to 79,442,829.09, 109,680,014.12 and 62,989,415.73

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Solution

The fourth proportional to 79,442,829.09, 109,680,014.12 and 62,989,415.73 is: 86,964,173.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,442,829.09 : 109,680,014.12 = 62,989,415.73 : x
  2. Step 2: Convert to fraction form
    79,442,829.09/109,680,014.12 = 62,989,415.73/x
  3. Step 3: Cross multiply
    79,442,829.09x = 109,680,014.12 × 62,989,415.73
  4. Step 4: Simplify right side
    79,442,829.09x = 6,908,680,006,362,002
  5. Step 5: Solve for x
    x = 6,908,680,006,362,002/79,442,829.09
  6. Step 6: Final answer
    x = 86,964,173.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.