Home / 19,930,816.80-29,896,225.20-18,935,488.80

Finding the Fourth Proportional to 19,930,816.80, 29,896,225.20 and 18,935,488.80

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Solution

The fourth proportional to 19,930,816.80, 29,896,225.20 and 18,935,488.80 is: 28,403,233.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,930,816.80 : 29,896,225.20 = 18,935,488.80 : x
  2. Step 2: Convert to fraction form
    19,930,816.80/29,896,225.20 = 18,935,488.80/x
  3. Step 3: Cross multiply
    19,930,816.80x = 29,896,225.20 × 18,935,488.80
  4. Step 4: Simplify right side
    19,930,816.80x = 566,099,637,436,877.75
  5. Step 5: Solve for x
    x = 566,099,637,436,877.75/19,930,816.80
  6. Step 6: Final answer
    x = 28,403,233.20

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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.