Home / 129,555,938.88-194,333,908.32-43,294,345.62

Finding the Fourth Proportional to 129,555,938.88, 194,333,908.32 and 43,294,345.62

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Solution

The fourth proportional to 129,555,938.88, 194,333,908.32 and 43,294,345.62 is: 64,941,518.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,555,938.88 : 194,333,908.32 = 43,294,345.62 : x
  2. Step 2: Convert to fraction form
    129,555,938.88/194,333,908.32 = 43,294,345.62/x
  3. Step 3: Cross multiply
    129,555,938.88x = 194,333,908.32 × 43,294,345.62
  4. Step 4: Simplify right side
    129,555,938.88x = 8,413,559,392,491,473
  5. Step 5: Solve for x
    x = 8,413,559,392,491,473/129,555,938.88
  6. Step 6: Final answer
    x = 64,941,518.43

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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.