Home / 288,911,317,746.25-398,698,550,115.08-160,452,766,363.42

Finding the Fourth Proportional to 288,911,317,746.25, 398,698,550,115.08 and 160,452,766,363.42

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Solution

The fourth proportional to 288,911,317,746.25, 398,698,550,115.08 and 160,452,766,363.42 is: 221,425,334,978.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,911,317,746.25 : 398,698,550,115.08 = 160,452,766,363.42 : x
  2. Step 2: Convert to fraction form
    288,911,317,746.25/398,698,550,115.08 = 160,452,766,363.42/x
  3. Step 3: Cross multiply
    288,911,317,746.25x = 398,698,550,115.08 × 160,452,766,363.42
  4. Step 4: Simplify right side
    288,911,317,746.25x = 63,972,285,311,049,239,887,872
  5. Step 5: Solve for x
    x = 63,972,285,311,049,239,887,872/288,911,317,746.25
  6. Step 6: Final answer
    x = 221,425,334,978.52

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Double scale
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1.5x scale

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.