Home / 18,693,558.40-28,032,043.20-8,590,979.20

Finding the Fourth Proportional to 18,693,558.40, 28,032,043.20 and 8,590,979.20

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Solution

The fourth proportional to 18,693,558.40, 28,032,043.20 and 8,590,979.20 is: 12,882,656.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693,558.40 : 28,032,043.20 = 8,590,979.20 : x
  2. Step 2: Convert to fraction form
    18,693,558.40/28,032,043.20 = 8,590,979.20/x
  3. Step 3: Cross multiply
    18,693,558.40x = 28,032,043.20 × 8,590,979.20
  4. Step 4: Simplify right side
    18,693,558.40x = 240,822,700,064,701.41
  5. Step 5: Solve for x
    x = 240,822,700,064,701.41/18,693,558.40
  6. Step 6: Final answer
    x = 12,882,656.95

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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.