Home / 789,699,591.36-1,090,920,577.46-630,720,988.16

Finding the Fourth Proportional to 789,699,591.36, 1,090,920,577.46 and 630,720,988.16

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Solution

The fourth proportional to 789,699,591.36, 1,090,920,577.46 and 630,720,988.16 is: 871,301,583.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    789,699,591.36 : 1,090,920,577.46 = 630,720,988.16 : x
  2. Step 2: Convert to fraction form
    789,699,591.36/1,090,920,577.46 = 630,720,988.16/x
  3. Step 3: Cross multiply
    789,699,591.36x = 1,090,920,577.46 × 630,720,988.16
  4. Step 4: Simplify right side
    789,699,591.36x = 688,066,504,611,040,768
  5. Step 5: Solve for x
    x = 688,066,504,611,040,768/789,699,591.36
  6. Step 6: Final answer
    x = 871,301,583.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.