Home / 153,311,164-211,567,475.28-87,231,454.72

Finding the Fourth Proportional to 153,311,164, 211,567,475.28 and 87,231,454.72

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Solution

The fourth proportional to 153,311,164, 211,567,475.28 and 87,231,454.72 is: 120,378,308.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,311,164 : 211,567,475.28 = 87,231,454.72 : x
  2. Step 2: Convert to fraction form
    153,311,164/211,567,475.28 = 87,231,454.72/x
  3. Step 3: Cross multiply
    153,311,164x = 211,567,475.28 × 87,231,454.72
  4. Step 4: Simplify right side
    153,311,164x = 18,455,338,640,112,040
  5. Step 5: Solve for x
    x = 18,455,338,640,112,040/153,311,164
  6. Step 6: Final answer
    x = 120,378,308.78

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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.