Home / 1,389,621,740.81-2,084,499,650.27-456,923,939.33

Finding the Fourth Proportional to 1,389,621,740.81, 2,084,499,650.27 and 456,923,939.33

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Solution

The fourth proportional to 1,389,621,740.81, 2,084,499,650.27 and 456,923,939.33 is: 685,407,952.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,621,740.81 : 2,084,499,650.27 = 456,923,939.33 : x
  2. Step 2: Convert to fraction form
    1,389,621,740.81/2,084,499,650.27 = 456,923,939.33/x
  3. Step 3: Cross multiply
    1,389,621,740.81x = 2,084,499,650.27 × 456,923,939.33
  4. Step 4: Simplify right side
    1,389,621,740.81x = 952,457,791,731,091,072
  5. Step 5: Solve for x
    x = 952,457,791,731,091,072/1,389,621,740.81
  6. Step 6: Final answer
    x = 685,407,952.22

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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.