Home / 129,491,980.40-194,167,111.80-52,728,280.40

Finding the Fourth Proportional to 129,491,980.40, 194,167,111.80 and 52,728,280.40

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Solution

The fourth proportional to 129,491,980.40, 194,167,111.80 and 52,728,280.40 is: 79,063,567.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,491,980.40 : 194,167,111.80 = 52,728,280.40 : x
  2. Step 2: Convert to fraction form
    129,491,980.40/194,167,111.80 = 52,728,280.40/x
  3. Step 3: Cross multiply
    129,491,980.40x = 194,167,111.80 × 52,728,280.40
  4. Step 4: Simplify right side
    129,491,980.40x = 10,238,097,915,448,550
  5. Step 5: Solve for x
    x = 10,238,097,915,448,550/129,491,980.40
  6. Step 6: Final answer
    x = 79,063,567.36

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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.