Home / 12,939,688.60-19,409,532.90-9,953,704.60

Finding the Fourth Proportional to 12,939,688.60, 19,409,532.90 and 9,953,704.60

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Solution

The fourth proportional to 12,939,688.60, 19,409,532.90 and 9,953,704.60 is: 14,930,556.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,939,688.60 : 19,409,532.90 = 9,953,704.60 : x
  2. Step 2: Convert to fraction form
    12,939,688.60/19,409,532.90 = 9,953,704.60/x
  3. Step 3: Cross multiply
    12,939,688.60x = 19,409,532.90 × 9,953,704.60
  4. Step 4: Simplify right side
    12,939,688.60x = 193,196,756,910,581.31
  5. Step 5: Solve for x
    x = 193,196,756,910,581.31/12,939,688.60
  6. Step 6: Final answer
    x = 14,930,556.90

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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.