Home / 785,787,475.56-1,084,387,791.69-428,556,115.86

Finding the Fourth Proportional to 785,787,475.56, 1,084,387,791.69 and 428,556,115.86

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Solution

The fourth proportional to 785,787,475.56, 1,084,387,791.69 and 428,556,115.86 is: 591,408,026.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    785,787,475.56 : 1,084,387,791.69 = 428,556,115.86 : x
  2. Step 2: Convert to fraction form
    785,787,475.56/1,084,387,791.69 = 428,556,115.86/x
  3. Step 3: Cross multiply
    785,787,475.56x = 1,084,387,791.69 × 428,556,115.86
  4. Step 4: Simplify right side
    785,787,475.56x = 464,721,020,092,669,248
  5. Step 5: Solve for x
    x = 464,721,020,092,669,248/785,787,475.56
  6. Step 6: Final answer
    x = 591,408,026.40

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Double scale
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1.5x scale

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.