Home / 13,438,312.26-18,546,445.31-7,637,965.89

Finding the Fourth Proportional to 13,438,312.26, 18,546,445.31 and 7,637,965.89

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Solution

The fourth proportional to 13,438,312.26, 18,546,445.31 and 7,637,965.89 is: 10,541,287.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,438,312.26 : 18,546,445.31 = 7,637,965.89 : x
  2. Step 2: Convert to fraction form
    13,438,312.26/18,546,445.31 = 7,637,965.89/x
  3. Step 3: Cross multiply
    13,438,312.26x = 18,546,445.31 × 7,637,965.89
  4. Step 4: Simplify right side
    13,438,312.26x = 141,657,116,620,340.62
  5. Step 5: Solve for x
    x = 141,657,116,620,340.62/13,438,312.26
  6. Step 6: Final answer
    x = 10,541,287.77

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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.