Home / 286,958,237,764.24-396,002,352,969.88-154,970,574,515.45

Finding the Fourth Proportional to 286,958,237,764.24, 396,002,352,969.88 and 154,970,574,515.45

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Solution

The fourth proportional to 286,958,237,764.24, 396,002,352,969.88 and 154,970,574,515.45 is: 213,859,384,652.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,958,237,764.24 : 396,002,352,969.88 = 154,970,574,515.45 : x
  2. Step 2: Convert to fraction form
    286,958,237,764.24/396,002,352,969.88 = 154,970,574,515.45/x
  3. Step 3: Cross multiply
    286,958,237,764.24x = 396,002,352,969.88 × 154,970,574,515.45
  4. Step 4: Simplify right side
    286,958,237,764.24x = 61,368,712,149,212,323,643,392
  5. Step 5: Solve for x
    x = 61,368,712,149,212,323,643,392/286,958,237,764.24
  6. Step 6: Final answer
    x = 213,859,384,652.45

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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.