Home / 288,911,317,741.52-398,698,550,108.49-160,452,766,358.65

Finding the Fourth Proportional to 288,911,317,741.52, 398,698,550,108.49 and 160,452,766,358.65

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Solution

The fourth proportional to 288,911,317,741.52, 398,698,550,108.49 and 160,452,766,358.65 is: 221,425,334,971.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,911,317,741.52 : 398,698,550,108.49 = 160,452,766,358.65 : x
  2. Step 2: Convert to fraction form
    288,911,317,741.52/398,698,550,108.49 = 160,452,766,358.65/x
  3. Step 3: Cross multiply
    288,911,317,741.52x = 398,698,550,108.49 × 160,452,766,358.65
  4. Step 4: Simplify right side
    288,911,317,741.52x = 63,972,285,308,090,049,363,968
  5. Step 5: Solve for x
    x = 63,972,285,308,090,049,363,968/288,911,317,741.52
  6. Step 6: Final answer
    x = 221,425,334,971.90

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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.