Home / 21,117,149.52-29,141,666.32-11,459,357.52

Finding the Fourth Proportional to 21,117,149.52, 29,141,666.32 and 11,459,357.52

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Solution

The fourth proportional to 21,117,149.52, 29,141,666.32 and 11,459,357.52 is: 15,813,913.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,117,149.52 : 29,141,666.32 = 11,459,357.52 : x
  2. Step 2: Convert to fraction form
    21,117,149.52/29,141,666.32 = 11,459,357.52/x
  3. Step 3: Cross multiply
    21,117,149.52x = 29,141,666.32 × 11,459,357.52
  4. Step 4: Simplify right side
    21,117,149.52x = 333,944,773,089,422.69
  5. Step 5: Solve for x
    x = 333,944,773,089,422.69/21,117,149.52
  6. Step 6: Final answer
    x = 15,813,913.37

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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.