Home / 140,249,727.99-193,540,911.96-78,370,575.03

Finding the Fourth Proportional to 140,249,727.99, 193,540,911.96 and 78,370,575.03

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Solution

The fourth proportional to 140,249,727.99, 193,540,911.96 and 78,370,575.03 is: 108,149,318.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,249,727.99 : 193,540,911.96 = 78,370,575.03 : x
  2. Step 2: Convert to fraction form
    140,249,727.99/193,540,911.96 = 78,370,575.03/x
  3. Step 3: Cross multiply
    140,249,727.99x = 193,540,911.96 × 78,370,575.03
  4. Step 4: Simplify right side
    140,249,727.99x = 15,167,912,562,135,806
  5. Step 5: Solve for x
    x = 15,167,912,562,135,806/140,249,727.99
  6. Step 6: Final answer
    x = 108,149,318.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.