Home / 18,753,088.60-28,129,632.90-9,174,611.80

Finding the Fourth Proportional to 18,753,088.60, 28,129,632.90 and 9,174,611.80

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Solution

The fourth proportional to 18,753,088.60, 28,129,632.90 and 9,174,611.80 is: 13,761,917.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,753,088.60 : 28,129,632.90 = 9,174,611.80 : x
  2. Step 2: Convert to fraction form
    18,753,088.60/28,129,632.90 = 9,174,611.80/x
  3. Step 3: Cross multiply
    18,753,088.60x = 28,129,632.90 × 9,174,611.80
  4. Step 4: Simplify right side
    18,753,088.60x = 258,078,461,934,008.22
  5. Step 5: Solve for x
    x = 258,078,461,934,008.22/18,753,088.60
  6. Step 6: Final answer
    x = 13,761,917.70

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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.