Home / 145,309,998.80-217,718,347.80-87,681,177.20

Finding the Fourth Proportional to 145,309,998.80, 217,718,347.80 and 87,681,177.20

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Solution

The fourth proportional to 145,309,998.80, 217,718,347.80 and 87,681,177.20 is: 131,372,935.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,309,998.80 : 217,718,347.80 = 87,681,177.20 : x
  2. Step 2: Convert to fraction form
    145,309,998.80/217,718,347.80 = 87,681,177.20/x
  3. Step 3: Cross multiply
    145,309,998.80x = 217,718,347.80 × 87,681,177.20
  4. Step 4: Simplify right side
    145,309,998.80x = 19,089,801,033,143,032
  5. Step 5: Solve for x
    x = 19,089,801,033,143,032/145,309,998.80
  6. Step 6: Final answer
    x = 131,372,935.04

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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.