Home / 20,411,999.40-30,617,999.10-18,392,523.60

Finding the Fourth Proportional to 20,411,999.40, 30,617,999.10 and 18,392,523.60

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Solution

The fourth proportional to 20,411,999.40, 30,617,999.10 and 18,392,523.60 is: 27,588,785.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,411,999.40 : 30,617,999.10 = 18,392,523.60 : x
  2. Step 2: Convert to fraction form
    20,411,999.40/30,617,999.10 = 18,392,523.60/x
  3. Step 3: Cross multiply
    20,411,999.40x = 30,617,999.10 × 18,392,523.60
  4. Step 4: Simplify right side
    20,411,999.40x = 563,142,271,031,528.88
  5. Step 5: Solve for x
    x = 563,142,271,031,528.88/20,411,999.40
  6. Step 6: Final answer
    x = 27,588,785.40

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1.5x scale

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.