Home / 19,930,211.40-29,909,313.90-12,759,184.20

Finding the Fourth Proportional to 19,930,211.40, 29,909,313.90 and 12,759,184.20

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Solution

The fourth proportional to 19,930,211.40, 29,909,313.90 and 12,759,184.20 is: 19,147,736.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930,211.40 : 29,909,313.90 = 12,759,184.20 : x
  2. Step 2: Convert to fraction form
    19,930,211.40/29,909,313.90 = 12,759,184.20/x
  3. Step 3: Cross multiply
    19,930,211.40x = 29,909,313.90 × 12,759,184.20
  4. Step 4: Simplify right side
    19,930,211.40x = 381,618,445,345,720.31
  5. Step 5: Solve for x
    x = 381,618,445,345,720.31/19,930,211.40
  6. Step 6: Final answer
    x = 19,147,736.96

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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.