Home / 21,355,427.43-29,470,464.59-11,565,865.89

Finding the Fourth Proportional to 21,355,427.43, 29,470,464.59 and 11,565,865.89

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Solution

The fourth proportional to 21,355,427.43, 29,470,464.59 and 11,565,865.89 is: 15,960,881.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,355,427.43 : 29,470,464.59 = 11,565,865.89 : x
  2. Step 2: Convert to fraction form
    21,355,427.43/29,470,464.59 = 11,565,865.89/x
  3. Step 3: Cross multiply
    21,355,427.43x = 29,470,464.59 × 11,565,865.89
  4. Step 4: Simplify right side
    21,355,427.43x = 340,851,441,106,104.56
  5. Step 5: Solve for x
    x = 340,851,441,106,104.56/21,355,427.43
  6. Step 6: Final answer
    x = 15,960,881.24

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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.