Home / 780,858,813.05-1,077,587,250.67-423,626,588.72

Finding the Fourth Proportional to 780,858,813.05, 1,077,587,250.67 and 423,626,588.72

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Solution

The fourth proportional to 780,858,813.05, 1,077,587,250.67 and 423,626,588.72 is: 584,605,825.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,858,813.05 : 1,077,587,250.67 = 423,626,588.72 : x
  2. Step 2: Convert to fraction form
    780,858,813.05/1,077,587,250.67 = 423,626,588.72/x
  3. Step 3: Cross multiply
    780,858,813.05x = 1,077,587,250.67 × 423,626,588.72
  4. Step 4: Simplify right side
    780,858,813.05x = 456,494,611,049,495,680
  5. Step 5: Solve for x
    x = 456,494,611,049,495,680/780,858,813.05
  6. Step 6: Final answer
    x = 584,605,825.56

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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.