Home / 12,765,820.40-17,628,422.28-9,501,442.64

Finding the Fourth Proportional to 12,765,820.40, 17,628,422.28 and 9,501,442.64

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Solution

The fourth proportional to 12,765,820.40, 17,628,422.28 and 9,501,442.64 is: 13,120,617.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,765,820.40 : 17,628,422.28 = 9,501,442.64 : x
  2. Step 2: Convert to fraction form
    12,765,820.40/17,628,422.28 = 9,501,442.64/x
  3. Step 3: Cross multiply
    12,765,820.40x = 17,628,422.28 × 9,501,442.64
  4. Step 4: Simplify right side
    12,765,820.40x = 167,495,443,127,118.03
  5. Step 5: Solve for x
    x = 167,495,443,127,118.03/12,765,820.40
  6. Step 6: Final answer
    x = 13,120,617.23

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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.