Home / 129,323,555.42-178,699,954.96-92,089,192.71

Finding the Fourth Proportional to 129,323,555.42, 178,699,954.96 and 92,089,192.71

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Solution

The fourth proportional to 129,323,555.42, 178,699,954.96 and 92,089,192.71 is: 127,249,320.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,323,555.42 : 178,699,954.96 = 92,089,192.71 : x
  2. Step 2: Convert to fraction form
    129,323,555.42/178,699,954.96 = 92,089,192.71/x
  3. Step 3: Cross multiply
    129,323,555.42x = 178,699,954.96 × 92,089,192.71
  4. Step 4: Simplify right side
    129,323,555.42x = 16,456,334,589,579,760
  5. Step 5: Solve for x
    x = 16,456,334,589,579,760/129,323,555.42
  6. Step 6: Final answer
    x = 127,249,320.79

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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.