Home / 12,876,782.91-17,769,955.41-7,075,938.75

Finding the Fourth Proportional to 12,876,782.91, 17,769,955.41 and 7,075,938.75

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Solution

The fourth proportional to 12,876,782.91, 17,769,955.41 and 7,075,938.75 is: 9,764,792.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876,782.91 : 17,769,955.41 = 7,075,938.75 : x
  2. Step 2: Convert to fraction form
    12,876,782.91/17,769,955.41 = 7,075,938.75/x
  3. Step 3: Cross multiply
    12,876,782.91x = 17,769,955.41 × 7,075,938.75
  4. Step 4: Simplify right side
    12,876,782.91x = 125,739,116,071,391.14
  5. Step 5: Solve for x
    x = 125,739,116,071,391.14/12,876,782.91
  6. Step 6: Final answer
    x = 9,764,792.72

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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.