Home / 13,106,946.80-19,660,420.20-8,571,983.60

Finding the Fourth Proportional to 13,106,946.80, 19,660,420.20 and 8,571,983.60

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Solution

The fourth proportional to 13,106,946.80, 19,660,420.20 and 8,571,983.60 is: 12,857,975.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,106,946.80 : 19,660,420.20 = 8,571,983.60 : x
  2. Step 2: Convert to fraction form
    13,106,946.80/19,660,420.20 = 8,571,983.60/x
  3. Step 3: Cross multiply
    13,106,946.80x = 19,660,420.20 × 8,571,983.60
  4. Step 4: Simplify right side
    13,106,946.80x = 168,528,799,523,508.72
  5. Step 5: Solve for x
    x = 168,528,799,523,508.72/13,106,946.80
  6. Step 6: Final answer
    x = 12,857,975.40

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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.