Home / 21,709,454.34-29,959,475.47-11,919,812.90

Finding the Fourth Proportional to 21,709,454.34, 29,959,475.47 and 11,919,812.90

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Solution

The fourth proportional to 21,709,454.34, 29,959,475.47 and 11,919,812.90 is: 16,449,577.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,709,454.34 : 29,959,475.47 = 11,919,812.90 : x
  2. Step 2: Convert to fraction form
    21,709,454.34/29,959,475.47 = 11,919,812.90/x
  3. Step 3: Cross multiply
    21,709,454.34x = 29,959,475.47 × 11,919,812.90
  4. Step 4: Simplify right side
    21,709,454.34x = 357,111,342,173,464.69
  5. Step 5: Solve for x
    x = 357,111,342,173,464.69/21,709,454.34
  6. Step 6: Final answer
    x = 16,449,577.06

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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.