Home / 18,724,009.60-28,086,014.40-5,260,837.60

Finding the Fourth Proportional to 18,724,009.60, 28,086,014.40 and 5,260,837.60

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Solution

The fourth proportional to 18,724,009.60, 28,086,014.40 and 5,260,837.60 is: 7,891,256.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,724,009.60 : 28,086,014.40 = 5,260,837.60 : x
  2. Step 2: Convert to fraction form
    18,724,009.60/28,086,014.40 = 5,260,837.60/x
  3. Step 3: Cross multiply
    18,724,009.60x = 28,086,014.40 × 5,260,837.60
  4. Step 4: Simplify right side
    18,724,009.60x = 147,755,960,589,661.41
  5. Step 5: Solve for x
    x = 147,755,960,589,661.41/18,724,009.60
  6. Step 6: Final answer
    x = 7,891,256.40

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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.