Home / 153,414,557.55-211,659,575.18-87,318,518.67

Finding the Fourth Proportional to 153,414,557.55, 211,659,575.18 and 87,318,518.67

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Solution

The fourth proportional to 153,414,557.55, 211,659,575.18 and 87,318,518.67 is: 120,469,666.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,414,557.55 : 211,659,575.18 = 87,318,518.67 : x
  2. Step 2: Convert to fraction form
    153,414,557.55/211,659,575.18 = 87,318,518.67/x
  3. Step 3: Cross multiply
    153,414,557.55x = 211,659,575.18 × 87,318,518.67
  4. Step 4: Simplify right side
    153,414,557.55x = 18,481,800,566,602,508
  5. Step 5: Solve for x
    x = 18,481,800,566,602,508/153,414,557.55
  6. Step 6: Final answer
    x = 120,469,666.38

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1.5x scale

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.