Home / 20,139,142.14-27,784,725.75-13,173,795.42

Finding the Fourth Proportional to 20,139,142.14, 27,784,725.75 and 13,173,795.42

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Solution

The fourth proportional to 20,139,142.14, 27,784,725.75 and 13,173,795.42 is: 18,175,068.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,139,142.14 : 27,784,725.75 = 13,173,795.42 : x
  2. Step 2: Convert to fraction form
    20,139,142.14/27,784,725.75 = 13,173,795.42/x
  3. Step 3: Cross multiply
    20,139,142.14x = 27,784,725.75 × 13,173,795.42
  4. Step 4: Simplify right side
    20,139,142.14x = 366,030,292,831,306.06
  5. Step 5: Solve for x
    x = 366,030,292,831,306.06/20,139,142.14
  6. Step 6: Final answer
    x = 18,175,068.74

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1.5x scale

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.