Home / 193,086,576.80-289,965,788.40-102,387,312.80

Finding the Fourth Proportional to 193,086,576.80, 289,965,788.40 and 102,387,312.80

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Solution

The fourth proportional to 193,086,576.80, 289,965,788.40 and 102,387,312.80 is: 153,759,097.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,086,576.80 : 289,965,788.40 = 102,387,312.80 : x
  2. Step 2: Convert to fraction form
    193,086,576.80/289,965,788.40 = 102,387,312.80/x
  3. Step 3: Cross multiply
    193,086,576.80x = 289,965,788.40 × 102,387,312.80
  4. Step 4: Simplify right side
    193,086,576.80x = 29,688,817,878,209,408
  5. Step 5: Solve for x
    x = 29,688,817,878,209,408/193,086,576.80
  6. Step 6: Final answer
    x = 153,759,097.97

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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.