Home / 21,248,911.09-29,322,631.16-12,549,899.89

Finding the Fourth Proportional to 21,248,911.09, 29,322,631.16 and 12,549,899.89

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Solution

The fourth proportional to 21,248,911.09, 29,322,631.16 and 12,549,899.89 is: 17,318,350.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,248,911.09 : 29,322,631.16 = 12,549,899.89 : x
  2. Step 2: Convert to fraction form
    21,248,911.09/29,322,631.16 = 12,549,899.89/x
  3. Step 3: Cross multiply
    21,248,911.09x = 29,322,631.16 × 12,549,899.89
  4. Step 4: Simplify right side
    21,248,911.09x = 367,996,085,506,645.12
  5. Step 5: Solve for x
    x = 367,996,085,506,645.12/21,248,911.09
  6. Step 6: Final answer
    x = 17,318,350.29

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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.