Home / 189,464,627.40-261,483,871.86-115,137,332.88

Finding the Fourth Proportional to 189,464,627.40, 261,483,871.86 and 115,137,332.88

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Solution

The fourth proportional to 189,464,627.40, 261,483,871.86 and 115,137,332.88 is: 158,903,305.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,464,627.40 : 261,483,871.86 = 115,137,332.88 : x
  2. Step 2: Convert to fraction form
    189,464,627.40/261,483,871.86 = 115,137,332.88/x
  3. Step 3: Cross multiply
    189,464,627.40x = 261,483,871.86 × 115,137,332.88
  4. Step 4: Simplify right side
    189,464,627.40x = 30,106,555,597,096,084
  5. Step 5: Solve for x
    x = 30,106,555,597,096,084/189,464,627.40
  6. Step 6: Final answer
    x = 158,903,305.65

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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.