Home / 28,083,609.70-42,156,907.35-21,722,064.10

Finding the Fourth Proportional to 28,083,609.70, 42,156,907.35 and 21,722,064.10

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Solution

The fourth proportional to 28,083,609.70, 42,156,907.35 and 21,722,064.10 is: 32,607,455.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,083,609.70 : 42,156,907.35 = 21,722,064.10 : x
  2. Step 2: Convert to fraction form
    28,083,609.70/42,156,907.35 = 21,722,064.10/x
  3. Step 3: Cross multiply
    28,083,609.70x = 42,156,907.35 × 21,722,064.10
  4. Step 4: Simplify right side
    28,083,609.70x = 915,735,043,714,461.25
  5. Step 5: Solve for x
    x = 915,735,043,714,461.25/28,083,609.70
  6. Step 6: Final answer
    x = 32,607,455.15

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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.