Home / 28,226,363.60-42,295,999.80-21,004,014.80

Finding the Fourth Proportional to 28,226,363.60, 42,295,999.80 and 21,004,014.80

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Solution

The fourth proportional to 28,226,363.60, 42,295,999.80 and 21,004,014.80 is: 31,473,618.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,226,363.60 : 42,295,999.80 = 21,004,014.80 : x
  2. Step 2: Convert to fraction form
    28,226,363.60/42,295,999.80 = 21,004,014.80/x
  3. Step 3: Cross multiply
    28,226,363.60x = 42,295,999.80 × 21,004,014.80
  4. Step 4: Simplify right side
    28,226,363.60x = 888,385,805,779,997
  5. Step 5: Solve for x
    x = 888,385,805,779,997/28,226,363.60
  6. Step 6: Final answer
    x = 31,473,618.72

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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.