Home / 21,553,623.20-32,330,434.80-18,782,256.80

Finding the Fourth Proportional to 21,553,623.20, 32,330,434.80 and 18,782,256.80

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Solution

The fourth proportional to 21,553,623.20, 32,330,434.80 and 18,782,256.80 is: 28,173,385.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,553,623.20 : 32,330,434.80 = 18,782,256.80 : x
  2. Step 2: Convert to fraction form
    21,553,623.20/32,330,434.80 = 18,782,256.80/x
  3. Step 3: Cross multiply
    21,553,623.20x = 32,330,434.80 × 18,782,256.80
  4. Step 4: Simplify right side
    21,553,623.20x = 607,238,528,869,256.62
  5. Step 5: Solve for x
    x = 607,238,528,869,256.62/21,553,623.20
  6. Step 6: Final answer
    x = 28,173,385.20

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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.