Home / 19,008,001.20-28,512,001.80-17,888,257.20

Finding the Fourth Proportional to 19,008,001.20, 28,512,001.80 and 17,888,257.20

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Solution

The fourth proportional to 19,008,001.20, 28,512,001.80 and 17,888,257.20 is: 26,832,385.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,008,001.20 : 28,512,001.80 = 17,888,257.20 : x
  2. Step 2: Convert to fraction form
    19,008,001.20/28,512,001.80 = 17,888,257.20/x
  3. Step 3: Cross multiply
    19,008,001.20x = 28,512,001.80 × 17,888,257.20
  4. Step 4: Simplify right side
    19,008,001.20x = 510,030,021,485,262.94
  5. Step 5: Solve for x
    x = 510,030,021,485,262.94/19,008,001.20
  6. Step 6: Final answer
    x = 26,832,385.80

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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.