Home / 288,911,317,745.82-398,698,550,114.45-160,452,766,362.98

Finding the Fourth Proportional to 288,911,317,745.82, 398,698,550,114.45 and 160,452,766,362.98

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Solution

The fourth proportional to 288,911,317,745.82, 398,698,550,114.45 and 160,452,766,362.98 is: 221,425,334,977.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,911,317,745.82 : 398,698,550,114.45 = 160,452,766,362.98 : x
  2. Step 2: Convert to fraction form
    288,911,317,745.82/398,698,550,114.45 = 160,452,766,362.98/x
  3. Step 3: Cross multiply
    288,911,317,745.82x = 398,698,550,114.45 × 160,452,766,362.98
  4. Step 4: Simplify right side
    288,911,317,745.82x = 63,972,285,310,772,726,202,368
  5. Step 5: Solve for x
    x = 63,972,285,310,772,726,202,368/288,911,317,745.82
  6. Step 6: Final answer
    x = 221,425,334,977.89

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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.