Home / 21,384,005.20-32,076,007.80-19,872,350.80

Finding the Fourth Proportional to 21,384,005.20, 32,076,007.80 and 19,872,350.80

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Solution

The fourth proportional to 21,384,005.20, 32,076,007.80 and 19,872,350.80 is: 29,808,526.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,384,005.20 : 32,076,007.80 = 19,872,350.80 : x
  2. Step 2: Convert to fraction form
    21,384,005.20/32,076,007.80 = 19,872,350.80/x
  3. Step 3: Cross multiply
    21,384,005.20x = 32,076,007.80 × 19,872,350.80
  4. Step 4: Simplify right side
    21,384,005.20x = 637,425,679,265,136.25
  5. Step 5: Solve for x
    x = 637,425,679,265,136.25/21,384,005.20
  6. Step 6: Final answer
    x = 29,808,526.20

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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.