Home / 28,083,809.70-42,125,714.55-11,907,008.10

Finding the Fourth Proportional to 28,083,809.70, 42,125,714.55 and 11,907,008.10

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Solution

The fourth proportional to 28,083,809.70, 42,125,714.55 and 11,907,008.10 is: 17,860,512.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083,809.70 : 42,125,714.55 = 11,907,008.10 : x
  2. Step 2: Convert to fraction form
    28,083,809.70/42,125,714.55 = 11,907,008.10/x
  3. Step 3: Cross multiply
    28,083,809.70x = 42,125,714.55 × 11,907,008.10
  4. Step 4: Simplify right side
    28,083,809.70x = 501,591,224,365,137.81
  5. Step 5: Solve for x
    x = 501,591,224,365,137.81/28,083,809.70
  6. Step 6: Final answer
    x = 17,860,512.15

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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.