Home / 19,266,071.40-28,899,107.10-7,914,666.60

Finding the Fourth Proportional to 19,266,071.40, 28,899,107.10 and 7,914,666.60

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Solution

The fourth proportional to 19,266,071.40, 28,899,107.10 and 7,914,666.60 is: 11,871,999.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,266,071.40 : 28,899,107.10 = 7,914,666.60 : x
  2. Step 2: Convert to fraction form
    19,266,071.40/28,899,107.10 = 7,914,666.60/x
  3. Step 3: Cross multiply
    19,266,071.40x = 28,899,107.10 × 7,914,666.60
  4. Step 4: Simplify right side
    19,266,071.40x = 228,726,797,734,192.88
  5. Step 5: Solve for x
    x = 228,726,797,734,192.88/19,266,071.40
  6. Step 6: Final answer
    x = 11,871,999.90

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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.