Home / 21,027,841.38-29,018,799-12,332,285.64

Finding the Fourth Proportional to 21,027,841.38, 29,018,799 and 12,332,285.64

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Solution

The fourth proportional to 21,027,841.38, 29,018,799 and 12,332,285.64 is: 17,018,775.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,027,841.38 : 29,018,799 = 12,332,285.64 : x
  2. Step 2: Convert to fraction form
    21,027,841.38/29,018,799 = 12,332,285.64/x
  3. Step 3: Cross multiply
    21,027,841.38x = 29,018,799 × 12,332,285.64
  4. Step 4: Simplify right side
    21,027,841.38x = 357,868,118,197,746.38
  5. Step 5: Solve for x
    x = 357,868,118,197,746.38/21,027,841.38
  6. Step 6: Final answer
    x = 17,018,775.81

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.