Home / 780,858,812.05-1,077,587,249.29-423,626,587.72

Finding the Fourth Proportional to 780,858,812.05, 1,077,587,249.29 and 423,626,587.72

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Solution

The fourth proportional to 780,858,812.05, 1,077,587,249.29 and 423,626,587.72 is: 584,605,824.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,858,812.05 : 1,077,587,249.29 = 423,626,587.72 : x
  2. Step 2: Convert to fraction form
    780,858,812.05/1,077,587,249.29 = 423,626,587.72/x
  3. Step 3: Cross multiply
    780,858,812.05x = 1,077,587,249.29 × 423,626,587.72
  4. Step 4: Simplify right side
    780,858,812.05x = 456,494,609,389,606,656
  5. Step 5: Solve for x
    x = 456,494,609,389,606,656/780,858,812.05
  6. Step 6: Final answer
    x = 584,605,824.19

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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.