Home / 20,984,612.64-31,477,696.72-7,335,088.80

Finding the Fourth Proportional to 20,984,612.64, 31,477,696.72 and 7,335,088.80

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Solution

The fourth proportional to 20,984,612.64, 31,477,696.72 and 7,335,088.80 is: 11,002,905.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,984,612.64 : 31,477,696.72 = 7,335,088.80 : x
  2. Step 2: Convert to fraction form
    20,984,612.64/31,477,696.72 = 7,335,088.80/x
  3. Step 3: Cross multiply
    20,984,612.64x = 31,477,696.72 × 7,335,088.80
  4. Step 4: Simplify right side
    20,984,612.64x = 230,891,700,660,668.72
  5. Step 5: Solve for x
    x = 230,891,700,660,668.72/20,984,612.64
  6. Step 6: Final answer
    x = 11,002,905.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.