Home / 121,535,577.34-167,719,083.84-65,780,987.86

Finding the Fourth Proportional to 121,535,577.34, 167,719,083.84 and 65,780,987.86

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Solution

The fourth proportional to 121,535,577.34, 167,719,083.84 and 65,780,987.86 is: 90,777,756.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,535,577.34 : 167,719,083.84 = 65,780,987.86 : x
  2. Step 2: Convert to fraction form
    121,535,577.34/167,719,083.84 = 65,780,987.86/x
  3. Step 3: Cross multiply
    121,535,577.34x = 167,719,083.84 × 65,780,987.86
  4. Step 4: Simplify right side
    121,535,577.34x = 11,032,727,017,969,362
  5. Step 5: Solve for x
    x = 11,032,727,017,969,362/121,535,577.34
  6. Step 6: Final answer
    x = 90,777,756.27

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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.