Home / 19,152,006.30-28,728,009.45-11,985,644.70

Finding the Fourth Proportional to 19,152,006.30, 28,728,009.45 and 11,985,644.70

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Solution

The fourth proportional to 19,152,006.30, 28,728,009.45 and 11,985,644.70 is: 17,978,467.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,152,006.30 : 28,728,009.45 = 11,985,644.70 : x
  2. Step 2: Convert to fraction form
    19,152,006.30/28,728,009.45 = 11,985,644.70/x
  3. Step 3: Cross multiply
    19,152,006.30x = 28,728,009.45 × 11,985,644.70
  4. Step 4: Simplify right side
    19,152,006.30x = 344,323,714,205,942.38
  5. Step 5: Solve for x
    x = 344,323,714,205,942.38/19,152,006.30
  6. Step 6: Final answer
    x = 17,978,467.05

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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.