Home / 139,968,507.70-209,952,761.55-71,944,059.70

Finding the Fourth Proportional to 139,968,507.70, 209,952,761.55 and 71,944,059.70

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Solution

The fourth proportional to 139,968,507.70, 209,952,761.55 and 71,944,059.70 is: 107,916,089.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,507.70 : 209,952,761.55 = 71,944,059.70 : x
  2. Step 2: Convert to fraction form
    139,968,507.70/209,952,761.55 = 71,944,059.70/x
  3. Step 3: Cross multiply
    139,968,507.70x = 209,952,761.55 × 71,944,059.70
  4. Step 4: Simplify right side
    139,968,507.70x = 15,104,854,011,133,066
  5. Step 5: Solve for x
    x = 15,104,854,011,133,066/139,968,507.70
  6. Step 6: Final answer
    x = 107,916,089.55

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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.