Home / 118,242,615-177,363,847.17-86,098,996.20

Finding the Fourth Proportional to 118,242,615, 177,363,847.17 and 86,098,996.20

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Solution

The fourth proportional to 118,242,615, 177,363,847.17 and 86,098,996.20 is: 129,148,439.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,242,615 : 177,363,847.17 = 86,098,996.20 : x
  2. Step 2: Convert to fraction form
    118,242,615/177,363,847.17 = 86,098,996.20/x
  3. Step 3: Cross multiply
    118,242,615x = 177,363,847.17 × 86,098,996.20
  4. Step 4: Simplify right side
    118,242,615x = 15,270,849,203,507,210
  5. Step 5: Solve for x
    x = 15,270,849,203,507,210/118,242,615
  6. Step 6: Final answer
    x = 129,148,439.45

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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.