Home / 118,195,287.83-177,362,019.07-85,373,491.67

Finding the Fourth Proportional to 118,195,287.83, 177,362,019.07 and 85,373,491.67

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Solution

The fourth proportional to 118,195,287.83, 177,362,019.07 and 85,373,491.67 is: 128,110,139.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,195,287.83 : 177,362,019.07 = 85,373,491.67 : x
  2. Step 2: Convert to fraction form
    118,195,287.83/177,362,019.07 = 85,373,491.67/x
  3. Step 3: Cross multiply
    118,195,287.83x = 177,362,019.07 × 85,373,491.67
  4. Step 4: Simplify right side
    118,195,287.83x = 15,142,014,856,333,350
  5. Step 5: Solve for x
    x = 15,142,014,856,333,350/118,195,287.83
  6. Step 6: Final answer
    x = 128,110,139.88

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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.