Home / 15,406,720.16-21,261,014.06-8,531,054.60

Finding the Fourth Proportional to 15,406,720.16, 21,261,014.06 and 8,531,054.60

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Solution

The fourth proportional to 15,406,720.16, 21,261,014.06 and 8,531,054.60 is: 11,772,711.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,406,720.16 : 21,261,014.06 = 8,531,054.60 : x
  2. Step 2: Convert to fraction form
    15,406,720.16/21,261,014.06 = 8,531,054.60/x
  3. Step 3: Cross multiply
    15,406,720.16x = 21,261,014.06 × 8,531,054.60
  4. Step 4: Simplify right side
    15,406,720.16x = 181,378,871,797,227.66
  5. Step 5: Solve for x
    x = 181,378,871,797,227.66/15,406,720.16
  6. Step 6: Final answer
    x = 11,772,711.51

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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.