Home / 189,213,966.64-261,054,132.15-105,568,535.80

Finding the Fourth Proportional to 189,213,966.64, 261,054,132.15 and 105,568,535.80

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Solution

The fourth proportional to 189,213,966.64, 261,054,132.15 and 105,568,535.80 is: 145,650,466.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,213,966.64 : 261,054,132.15 = 105,568,535.80 : x
  2. Step 2: Convert to fraction form
    189,213,966.64/261,054,132.15 = 105,568,535.80/x
  3. Step 3: Cross multiply
    189,213,966.64x = 261,054,132.15 × 105,568,535.80
  4. Step 4: Simplify right side
    189,213,966.64x = 27,559,102,495,615,204
  5. Step 5: Solve for x
    x = 27,559,102,495,615,204/189,213,966.64
  6. Step 6: Final answer
    x = 145,650,466.43

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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.