Home / 142,489,386.56-213,872,290.86-68,765,049.46

Finding the Fourth Proportional to 142,489,386.56, 213,872,290.86 and 68,765,049.46

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Solution

The fourth proportional to 142,489,386.56, 213,872,290.86 and 68,765,049.46 is: 103,214,274.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,489,386.56 : 213,872,290.86 = 68,765,049.46 : x
  2. Step 2: Convert to fraction form
    142,489,386.56/213,872,290.86 = 68,765,049.46/x
  3. Step 3: Cross multiply
    142,489,386.56x = 213,872,290.86 × 68,765,049.46
  4. Step 4: Simplify right side
    142,489,386.56x = 14,706,938,659,111,406
  5. Step 5: Solve for x
    x = 14,706,938,659,111,406/142,489,386.56
  6. Step 6: Final answer
    x = 103,214,274.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.