Home / 12,486,607.84-17,234,398.38-8,128,102.60

Finding the Fourth Proportional to 12,486,607.84, 17,234,398.38 and 8,128,102.60

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Solution

The fourth proportional to 12,486,607.84, 17,234,398.38 and 8,128,102.60 is: 11,218,656.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,486,607.84 : 17,234,398.38 = 8,128,102.60 : x
  2. Step 2: Convert to fraction form
    12,486,607.84/17,234,398.38 = 8,128,102.60/x
  3. Step 3: Cross multiply
    12,486,607.84x = 17,234,398.38 × 8,128,102.60
  4. Step 4: Simplify right side
    12,486,607.84x = 140,082,958,281,913.77
  5. Step 5: Solve for x
    x = 140,082,958,281,913.77/12,486,607.84
  6. Step 6: Final answer
    x = 11,218,656.03

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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.