Home / 18,677,969.20-28,016,953.80-6,561,114.40

Finding the Fourth Proportional to 18,677,969.20, 28,016,953.80 and 6,561,114.40

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Solution

The fourth proportional to 18,677,969.20, 28,016,953.80 and 6,561,114.40 is: 9,841,671.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,677,969.20 : 28,016,953.80 = 6,561,114.40 : x
  2. Step 2: Convert to fraction form
    18,677,969.20/28,016,953.80 = 6,561,114.40/x
  3. Step 3: Cross multiply
    18,677,969.20x = 28,016,953.80 × 6,561,114.40
  4. Step 4: Simplify right side
    18,677,969.20x = 183,822,439,021,314.75
  5. Step 5: Solve for x
    x = 183,822,439,021,314.75/18,677,969.20
  6. Step 6: Final answer
    x = 9,841,671.60

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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.