Home / 19,561,321.60-29,341,982.40-12,758,876.80

Finding the Fourth Proportional to 19,561,321.60, 29,341,982.40 and 12,758,876.80

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Solution

The fourth proportional to 19,561,321.60, 29,341,982.40 and 12,758,876.80 is: 19,138,315.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,561,321.60 : 29,341,982.40 = 12,758,876.80 : x
  2. Step 2: Convert to fraction form
    19,561,321.60/29,341,982.40 = 12,758,876.80/x
  3. Step 3: Cross multiply
    19,561,321.60x = 29,341,982.40 × 12,758,876.80
  4. Step 4: Simplify right side
    19,561,321.60x = 374,370,738,509,368.31
  5. Step 5: Solve for x
    x = 374,370,738,509,368.31/19,561,321.60
  6. Step 6: Final answer
    x = 19,138,315.20

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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.