Home / 20,572,047.60-30,929,221.80-19,240,018.80

Finding the Fourth Proportional to 20,572,047.60, 30,929,221.80 and 19,240,018.80

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Solution

The fourth proportional to 20,572,047.60, 30,929,221.80 and 19,240,018.80 is: 28,926,571.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,572,047.60 : 30,929,221.80 = 19,240,018.80 : x
  2. Step 2: Convert to fraction form
    20,572,047.60/30,929,221.80 = 19,240,018.80/x
  3. Step 3: Cross multiply
    20,572,047.60x = 30,929,221.80 × 19,240,018.80
  4. Step 4: Simplify right side
    20,572,047.60x = 595,078,808,901,369.88
  5. Step 5: Solve for x
    x = 595,078,808,901,369.88/20,572,047.60
  6. Step 6: Final answer
    x = 28,926,571.65

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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.