Home / 10,728,763.75-14,844,681.87-9,354,970.21

Finding the Fourth Proportional to 10,728,763.75, 14,844,681.87 and 9,354,970.21

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Solution

The fourth proportional to 10,728,763.75, 14,844,681.87 and 9,354,970.21 is: 12,943,854.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,728,763.75 : 14,844,681.87 = 9,354,970.21 : x
  2. Step 2: Convert to fraction form
    10,728,763.75/14,844,681.87 = 9,354,970.21/x
  3. Step 3: Cross multiply
    10,728,763.75x = 14,844,681.87 × 9,354,970.21
  4. Step 4: Simplify right side
    10,728,763.75x = 138,871,556,670,777.09
  5. Step 5: Solve for x
    x = 138,871,556,670,777.09/10,728,763.75
  6. Step 6: Final answer
    x = 12,943,854.47

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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.