Home / 1,191,009,969.60-1,786,757,090.40-414,716,164.80

Finding the Fourth Proportional to 1,191,009,969.60, 1,786,757,090.40 and 414,716,164.80

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Solution

The fourth proportional to 1,191,009,969.60, 1,786,757,090.40 and 414,716,164.80 is: 622,158,560.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,191,009,969.60 : 1,786,757,090.40 = 414,716,164.80 : x
  2. Step 2: Convert to fraction form
    1,191,009,969.60/1,786,757,090.40 = 414,716,164.80/x
  3. Step 3: Cross multiply
    1,191,009,969.60x = 1,786,757,090.40 × 414,716,164.80
  4. Step 4: Simplify right side
    1,191,009,969.60x = 740,997,047,959,894,912
  5. Step 5: Solve for x
    x = 740,997,047,959,894,912/1,191,009,969.60
  6. Step 6: Final answer
    x = 622,158,560.28

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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.