Home / 18,723,999.60-28,085,999.40-5,260,827.60

Finding the Fourth Proportional to 18,723,999.60, 28,085,999.40 and 5,260,827.60

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Solution

The fourth proportional to 18,723,999.60, 28,085,999.40 and 5,260,827.60 is: 7,891,241.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,723,999.60 : 28,085,999.40 = 5,260,827.60 : x
  2. Step 2: Convert to fraction form
    18,723,999.60/28,085,999.40 = 5,260,827.60/x
  3. Step 3: Cross multiply
    18,723,999.60x = 28,085,999.40 × 5,260,827.60
  4. Step 4: Simplify right side
    18,723,999.60x = 147,755,600,817,103.41
  5. Step 5: Solve for x
    x = 147,755,600,817,103.41/18,723,999.60
  6. Step 6: Final answer
    x = 7,891,241.40

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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.