Home / 13,571,748-18,729,051.12-7,770,618.72

Finding the Fourth Proportional to 13,571,748, 18,729,051.12 and 7,770,618.72

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Solution

The fourth proportional to 13,571,748, 18,729,051.12 and 7,770,618.72 is: 10,723,476.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,571,748 : 18,729,051.12 = 7,770,618.72 : x
  2. Step 2: Convert to fraction form
    13,571,748/18,729,051.12 = 7,770,618.72/x
  3. Step 3: Cross multiply
    13,571,748x = 18,729,051.12 × 7,770,618.72
  4. Step 4: Simplify right side
    13,571,748x = 145,536,315,240,908.97
  5. Step 5: Solve for x
    x = 145,536,315,240,908.97/13,571,748
  6. Step 6: Final answer
    x = 10,723,476.09

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1.5x scale

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.