Home / 20,434,411.84-30,616,931.68-12,330,359.68

Finding the Fourth Proportional to 20,434,411.84, 30,616,931.68 and 12,330,359.68

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Solution

The fourth proportional to 20,434,411.84, 30,616,931.68 and 12,330,359.68 is: 18,474,609.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,434,411.84 : 30,616,931.68 = 12,330,359.68 : x
  2. Step 2: Convert to fraction form
    20,434,411.84/30,616,931.68 = 12,330,359.68/x
  3. Step 3: Cross multiply
    20,434,411.84x = 30,616,931.68 × 12,330,359.68
  4. Step 4: Simplify right side
    20,434,411.84x = 377,517,779,912,386.62
  5. Step 5: Solve for x
    x = 377,517,779,912,386.62/20,434,411.84
  6. Step 6: Final answer
    x = 18,474,609.54

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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.