Home / 12,911,701.82-17,812,799.79-7,683,662.12

Finding the Fourth Proportional to 12,911,701.82, 17,812,799.79 and 7,683,662.12

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Solution

The fourth proportional to 12,911,701.82, 17,812,799.79 and 7,683,662.12 is: 10,600,270.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,911,701.82 : 17,812,799.79 = 7,683,662.12 : x
  2. Step 2: Convert to fraction form
    12,911,701.82/17,812,799.79 = 7,683,662.12/x
  3. Step 3: Cross multiply
    12,911,701.82x = 17,812,799.79 × 7,683,662.12
  4. Step 4: Simplify right side
    12,911,701.82x = 136,867,534,997,566.95
  5. Step 5: Solve for x
    x = 136,867,534,997,566.95/12,911,701.82
  6. Step 6: Final answer
    x = 10,600,270.74

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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.