Home / 140,249,682.87-193,540,849.70-78,370,529.91

Finding the Fourth Proportional to 140,249,682.87, 193,540,849.70 and 78,370,529.91

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Solution

The fourth proportional to 140,249,682.87, 193,540,849.70 and 78,370,529.91 is: 108,149,256.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,249,682.87 : 193,540,849.70 = 78,370,529.91 : x
  2. Step 2: Convert to fraction form
    140,249,682.87/193,540,849.70 = 78,370,529.91/x
  3. Step 3: Cross multiply
    140,249,682.87x = 193,540,849.70 × 78,370,529.91
  4. Step 4: Simplify right side
    140,249,682.87x = 15,167,898,950,220,662
  5. Step 5: Solve for x
    x = 15,167,898,950,220,662/140,249,682.87
  6. Step 6: Final answer
    x = 108,149,256.67

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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.