Home / 692,307,406.08-955,346,375.07-378,981,009.36

Finding the Fourth Proportional to 692,307,406.08, 955,346,375.07 and 378,981,009.36

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Solution

The fourth proportional to 692,307,406.08, 955,346,375.07 and 378,981,009.36 is: 522,973,075.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    692,307,406.08 : 955,346,375.07 = 378,981,009.36 : x
  2. Step 2: Convert to fraction form
    692,307,406.08/955,346,375.07 = 378,981,009.36/x
  3. Step 3: Cross multiply
    692,307,406.08x = 955,346,375.07 × 378,981,009.36
  4. Step 4: Simplify right side
    692,307,406.08x = 362,058,133,512,445,760
  5. Step 5: Solve for x
    x = 362,058,133,512,445,760/692,307,406.08
  6. Step 6: Final answer
    x = 522,973,075.74

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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.