Home / 557,921,175.83-769,938,283.55-307,054,451.78

Finding the Fourth Proportional to 557,921,175.83, 769,938,283.55 and 307,054,451.78

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Solution

The fourth proportional to 557,921,175.83, 769,938,283.55 and 307,054,451.78 is: 423,739,029.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,921,175.83 : 769,938,283.55 = 307,054,451.78 : x
  2. Step 2: Convert to fraction form
    557,921,175.83/769,938,283.55 = 307,054,451.78/x
  3. Step 3: Cross multiply
    557,921,175.83x = 769,938,283.55 × 307,054,451.78
  4. Step 4: Simplify right side
    557,921,175.83x = 236,412,977,559,879,392
  5. Step 5: Solve for x
    x = 236,412,977,559,879,392/557,921,175.83
  6. Step 6: Final answer
    x = 423,739,029.46

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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.