Home / 501,605,672.26-692,217,431.40-278,587,313.47

Finding the Fourth Proportional to 501,605,672.26, 692,217,431.40 and 278,587,313.47

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Solution

The fourth proportional to 501,605,672.26, 692,217,431.40 and 278,587,313.47 is: 384,451,383.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    501,605,672.26 : 692,217,431.40 = 278,587,313.47 : x
  2. Step 2: Convert to fraction form
    501,605,672.26/692,217,431.40 = 278,587,313.47/x
  3. Step 3: Cross multiply
    501,605,672.26x = 692,217,431.40 × 278,587,313.47
  4. Step 4: Simplify right side
    501,605,672.26x = 192,842,994,550,830,048
  5. Step 5: Solve for x
    x = 192,842,994,550,830,048/501,605,672.26
  6. Step 6: Final answer
    x = 384,451,383.26

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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.