Home / 13,390,123.68-18,487,268.64-10,287,120.48

Finding the Fourth Proportional to 13,390,123.68, 18,487,268.64 and 10,287,120.48

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Solution

The fourth proportional to 13,390,123.68, 18,487,268.64 and 10,287,120.48 is: 14,203,062.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,390,123.68 : 18,487,268.64 = 10,287,120.48 : x
  2. Step 2: Convert to fraction form
    13,390,123.68/18,487,268.64 = 10,287,120.48/x
  3. Step 3: Cross multiply
    13,390,123.68x = 18,487,268.64 × 10,287,120.48
  4. Step 4: Simplify right side
    13,390,123.68x = 190,180,759,845,805.75
  5. Step 5: Solve for x
    x = 190,180,759,845,805.75/13,390,123.68
  6. Step 6: Final answer
    x = 14,203,062.23

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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.