Home / 18,971,991.23-28,453,727.66-8,727,011.60

Finding the Fourth Proportional to 18,971,991.23, 28,453,727.66 and 8,727,011.60

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Solution

The fourth proportional to 18,971,991.23, 28,453,727.66 and 8,727,011.60 is: 13,088,558.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,971,991.23 : 28,453,727.66 = 8,727,011.60 : x
  2. Step 2: Convert to fraction form
    18,971,991.23/28,453,727.66 = 8,727,011.60/x
  3. Step 3: Cross multiply
    18,971,991.23x = 28,453,727.66 × 8,727,011.60
  4. Step 4: Simplify right side
    18,971,991.23x = 248,316,011,166,157.19
  5. Step 5: Solve for x
    x = 248,316,011,166,157.19/18,971,991.23
  6. Step 6: Final answer
    x = 13,088,558.19

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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.