Home / 12,765,035-17,615,748.30-8,181,356.38

Finding the Fourth Proportional to 12,765,035, 17,615,748.30 and 8,181,356.38

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Solution

The fourth proportional to 12,765,035, 17,615,748.30 and 8,181,356.38 is: 11,290,271.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,765,035 : 17,615,748.30 = 8,181,356.38 : x
  2. Step 2: Convert to fraction form
    12,765,035/17,615,748.30 = 8,181,356.38/x
  3. Step 3: Cross multiply
    12,765,035x = 17,615,748.30 × 8,181,356.38
  4. Step 4: Simplify right side
    12,765,035x = 144,120,714,742,679.16
  5. Step 5: Solve for x
    x = 144,120,714,742,679.16/12,765,035
  6. Step 6: Final answer
    x = 11,290,271.80

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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.