Home / 218,117,217.60-327,013,113.60-131,837,443.20

Finding the Fourth Proportional to 218,117,217.60, 327,013,113.60 and 131,837,443.20

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Solution

The fourth proportional to 218,117,217.60, 327,013,113.60 and 131,837,443.20 is: 197,657,815.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,117,217.60 : 327,013,113.60 = 131,837,443.20 : x
  2. Step 2: Convert to fraction form
    218,117,217.60/327,013,113.60 = 131,837,443.20/x
  3. Step 3: Cross multiply
    218,117,217.60x = 327,013,113.60 × 131,837,443.20
  4. Step 4: Simplify right side
    218,117,217.60x = 43,112,572,789,895,152
  5. Step 5: Solve for x
    x = 43,112,572,789,895,152/218,117,217.60
  6. Step 6: Final answer
    x = 197,657,815.67

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.