Home / 20,401,990.64-28,152,606.60-11,578,632.16

Finding the Fourth Proportional to 20,401,990.64, 28,152,606.60 and 11,578,632.16

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Solution

The fourth proportional to 20,401,990.64, 28,152,606.60 and 11,578,632.16 is: 15,977,297.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,401,990.64 : 28,152,606.60 = 11,578,632.16 : x
  2. Step 2: Convert to fraction form
    20,401,990.64/28,152,606.60 = 11,578,632.16/x
  3. Step 3: Cross multiply
    20,401,990.64x = 28,152,606.60 × 11,578,632.16
  4. Step 4: Simplify right side
    20,401,990.64x = 325,968,676,166,588.25
  5. Step 5: Solve for x
    x = 325,968,676,166,588.25/20,401,990.64
  6. Step 6: Final answer
    x = 15,977,297.60

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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.