Home / 9,359,210.79-12,916,379.43-5,172,805.89

Finding the Fourth Proportional to 9,359,210.79, 12,916,379.43 and 5,172,805.89

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Solution

The fourth proportional to 9,359,210.79, 12,916,379.43 and 5,172,805.89 is: 7,138,841.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,359,210.79 : 12,916,379.43 = 5,172,805.89 : x
  2. Step 2: Convert to fraction form
    9,359,210.79/12,916,379.43 = 5,172,805.89/x
  3. Step 3: Cross multiply
    9,359,210.79x = 12,916,379.43 × 5,172,805.89
  4. Step 4: Simplify right side
    9,359,210.79x = 66,813,923,592,978.84
  5. Step 5: Solve for x
    x = 66,813,923,592,978.84/9,359,210.79
  6. Step 6: Final answer
    x = 7,138,841.63

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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.