Home / 426,100,791.78-588,425,201.01-402,887,115.36

Finding the Fourth Proportional to 426,100,791.78, 588,425,201.01 and 402,887,115.36

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Solution

The fourth proportional to 426,100,791.78, 588,425,201.01 and 402,887,115.36 is: 556,368,203.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,100,791.78 : 588,425,201.01 = 402,887,115.36 : x
  2. Step 2: Convert to fraction form
    426,100,791.78/588,425,201.01 = 402,887,115.36/x
  3. Step 3: Cross multiply
    426,100,791.78x = 588,425,201.01 × 402,887,115.36
  4. Step 4: Simplify right side
    426,100,791.78x = 237,068,931,840,047,072
  5. Step 5: Solve for x
    x = 237,068,931,840,047,072/426,100,791.78
  6. Step 6: Final answer
    x = 556,368,203.05

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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.