Home / 18,261,729-25,201,978.20-10,112,967

Finding the Fourth Proportional to 18,261,729, 25,201,978.20 and 10,112,967

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Solution

The fourth proportional to 18,261,729, 25,201,978.20 and 10,112,967 is: 13,956,333.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,261,729 : 25,201,978.20 = 10,112,967 : x
  2. Step 2: Convert to fraction form
    18,261,729/25,201,978.20 = 10,112,967/x
  3. Step 3: Cross multiply
    18,261,729x = 25,201,978.20 × 10,112,967
  4. Step 4: Simplify right side
    18,261,729x = 254,866,773,871,319.41
  5. Step 5: Solve for x
    x = 254,866,773,871,319.41/18,261,729
  6. Step 6: Final answer
    x = 13,956,333.15

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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.