Home / 557,272,656.48-769,036,758-306,381,317.28

Finding the Fourth Proportional to 557,272,656.48, 769,036,758 and 306,381,317.28

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Solution

The fourth proportional to 557,272,656.48, 769,036,758 and 306,381,317.28 is: 422,806,488.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,272,656.48 : 769,036,758 = 306,381,317.28 : x
  2. Step 2: Convert to fraction form
    557,272,656.48/769,036,758 = 306,381,317.28/x
  3. Step 3: Cross multiply
    557,272,656.48x = 769,036,758 × 306,381,317.28
  4. Step 4: Simplify right side
    557,272,656.48x = 235,618,494,952,780,544
  5. Step 5: Solve for x
    x = 235,618,494,952,780,544/557,272,656.48
  6. Step 6: Final answer
    x = 422,806,488.37

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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.