Home / 20,495,630.69-28,283,968.31-11,203,238.09

Finding the Fourth Proportional to 20,495,630.69, 28,283,968.31 and 11,203,238.09

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Solution

The fourth proportional to 20,495,630.69, 28,283,968.31 and 11,203,238.09 is: 15,460,467.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,495,630.69 : 28,283,968.31 = 11,203,238.09 : x
  2. Step 2: Convert to fraction form
    20,495,630.69/28,283,968.31 = 11,203,238.09/x
  3. Step 3: Cross multiply
    20,495,630.69x = 28,283,968.31 × 11,203,238.09
  4. Step 4: Simplify right side
    20,495,630.69x = 316,872,031,106,944.94
  5. Step 5: Solve for x
    x = 316,872,031,106,944.94/20,495,630.69
  6. Step 6: Final answer
    x = 15,460,467.45

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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.