Home / 129,343,083.80-194,014,625.70-121,690,333.40

Finding the Fourth Proportional to 129,343,083.80, 194,014,625.70 and 121,690,333.40

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Solution

The fourth proportional to 129,343,083.80, 194,014,625.70 and 121,690,333.40 is: 182,535,500.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,343,083.80 : 194,014,625.70 = 121,690,333.40 : x
  2. Step 2: Convert to fraction form
    129,343,083.80/194,014,625.70 = 121,690,333.40/x
  3. Step 3: Cross multiply
    129,343,083.80x = 194,014,625.70 × 121,690,333.40
  4. Step 4: Simplify right side
    129,343,083.80x = 23,609,704,485,909,208
  5. Step 5: Solve for x
    x = 23,609,704,485,909,208/129,343,083.80
  6. Step 6: Final answer
    x = 182,535,500.10

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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.