Home / 18,693,564.40-28,032,052.20-8,590,985.20

Finding the Fourth Proportional to 18,693,564.40, 28,032,052.20 and 8,590,985.20

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Solution

The fourth proportional to 18,693,564.40, 28,032,052.20 and 8,590,985.20 is: 12,882,665.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,693,564.40 : 28,032,052.20 = 8,590,985.20 : x
  2. Step 2: Convert to fraction form
    18,693,564.40/28,032,052.20 = 8,590,985.20/x
  3. Step 3: Cross multiply
    18,693,564.40x = 28,032,052.20 × 8,590,985.20
  4. Step 4: Simplify right side
    18,693,564.40x = 240,822,945,575,827.41
  5. Step 5: Solve for x
    x = 240,822,945,575,827.41/18,693,564.40
  6. Step 6: Final answer
    x = 12,882,665.95

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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.