Home / 129,405,329.28-194,109,710.04-43,143,763.68

Finding the Fourth Proportional to 129,405,329.28, 194,109,710.04 and 43,143,763.68

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Solution

The fourth proportional to 129,405,329.28, 194,109,710.04 and 43,143,763.68 is: 64,716,217.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,405,329.28 : 194,109,710.04 = 43,143,763.68 : x
  2. Step 2: Convert to fraction form
    129,405,329.28/194,109,710.04 = 43,143,763.68/x
  3. Step 3: Cross multiply
    129,405,329.28x = 194,109,710.04 × 43,143,763.68
  4. Step 4: Simplify right side
    129,405,329.28x = 8,374,623,457,959,083
  5. Step 5: Solve for x
    x = 8,374,623,457,959,083/129,405,329.28
  6. Step 6: Final answer
    x = 64,716,217.67

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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.