Home / 19,906,685.60-29,860,028.40-8,545,200.80

Finding the Fourth Proportional to 19,906,685.60, 29,860,028.40 and 8,545,200.80

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Solution

The fourth proportional to 19,906,685.60, 29,860,028.40 and 8,545,200.80 is: 12,817,801.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,906,685.60 : 29,860,028.40 = 8,545,200.80 : x
  2. Step 2: Convert to fraction form
    19,906,685.60/29,860,028.40 = 8,545,200.80/x
  3. Step 3: Cross multiply
    19,906,685.60x = 29,860,028.40 × 8,545,200.80
  4. Step 4: Simplify right side
    19,906,685.60x = 255,159,938,571,702.72
  5. Step 5: Solve for x
    x = 255,159,938,571,702.72/19,906,685.60
  6. Step 6: Final answer
    x = 12,817,801.20

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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.