Home / 12,760,905.40-19,155,354.90-7,973,999.80

Finding the Fourth Proportional to 12,760,905.40, 19,155,354.90 and 7,973,999.80

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Solution

The fourth proportional to 12,760,905.40, 19,155,354.90 and 7,973,999.80 is: 11,969,745.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,760,905.40 : 19,155,354.90 = 7,973,999.80 : x
  2. Step 2: Convert to fraction form
    12,760,905.40/19,155,354.90 = 7,973,999.80/x
  3. Step 3: Cross multiply
    12,760,905.40x = 19,155,354.90 × 7,973,999.80
  4. Step 4: Simplify right side
    12,760,905.40x = 152,744,796,141,529
  5. Step 5: Solve for x
    x = 152,744,796,141,529/12,760,905.40
  6. Step 6: Final answer
    x = 11,969,745.98

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1.5x scale

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.