Home / 20,807,414.40-31,211,121.60-7,345,603.20

Finding the Fourth Proportional to 20,807,414.40, 31,211,121.60 and 7,345,603.20

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Solution

The fourth proportional to 20,807,414.40, 31,211,121.60 and 7,345,603.20 is: 11,018,404.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,807,414.40 : 31,211,121.60 = 7,345,603.20 : x
  2. Step 2: Convert to fraction form
    20,807,414.40/31,211,121.60 = 7,345,603.20/x
  3. Step 3: Cross multiply
    20,807,414.40x = 31,211,121.60 × 7,345,603.20
  4. Step 4: Simplify right side
    20,807,414.40x = 229,264,514,700,549.12
  5. Step 5: Solve for x
    x = 229,264,514,700,549.12/20,807,414.40
  6. Step 6: Final answer
    x = 11,018,404.80

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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.