Home / 21,690,771.54-29,933,261.49-12,398,541.14

Finding the Fourth Proportional to 21,690,771.54, 29,933,261.49 and 12,398,541.14

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Solution

The fourth proportional to 21,690,771.54, 29,933,261.49 and 12,398,541.14 is: 17,109,984.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,690,771.54 : 29,933,261.49 = 12,398,541.14 : x
  2. Step 2: Convert to fraction form
    21,690,771.54/29,933,261.49 = 12,398,541.14/x
  3. Step 3: Cross multiply
    21,690,771.54x = 29,933,261.49 × 12,398,541.14
  4. Step 4: Simplify right side
    21,690,771.54x = 371,128,773,841,981.81
  5. Step 5: Solve for x
    x = 371,128,773,841,981.81/21,690,771.54
  6. Step 6: Final answer
    x = 17,109,984.91

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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.