Home / 21,315,499.63-31,961,010.51-8,346,465.77

Finding the Fourth Proportional to 21,315,499.63, 31,961,010.51 and 8,346,465.77

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Solution

The fourth proportional to 21,315,499.63, 31,961,010.51 and 8,346,465.77 is: 12,514,906.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,315,499.63 : 31,961,010.51 = 8,346,465.77 : x
  2. Step 2: Convert to fraction form
    21,315,499.63/31,961,010.51 = 8,346,465.77/x
  3. Step 3: Cross multiply
    21,315,499.63x = 31,961,010.51 × 8,346,465.77
  4. Step 4: Simplify right side
    21,315,499.63x = 266,761,480,196,325.25
  5. Step 5: Solve for x
    x = 266,761,480,196,325.25/21,315,499.63
  6. Step 6: Final answer
    x = 12,514,906.28

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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.