Home / 139,968,500.70-209,952,751.05-71,944,052.70

Finding the Fourth Proportional to 139,968,500.70, 209,952,751.05 and 71,944,052.70

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Solution

The fourth proportional to 139,968,500.70, 209,952,751.05 and 71,944,052.70 is: 107,916,079.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,968,500.70 : 209,952,751.05 = 71,944,052.70 : x
  2. Step 2: Convert to fraction form
    139,968,500.70/209,952,751.05 = 71,944,052.70/x
  3. Step 3: Cross multiply
    139,968,500.70x = 209,952,751.05 × 71,944,052.70
  4. Step 4: Simplify right side
    139,968,500.70x = 15,104,851,786,051,182
  5. Step 5: Solve for x
    x = 15,104,851,786,051,182/139,968,500.70
  6. Step 6: Final answer
    x = 107,916,079.05

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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.