Home / 288,911,317,746.50-398,698,550,115.41-160,452,766,363.67

Finding the Fourth Proportional to 288,911,317,746.50, 398,698,550,115.41 and 160,452,766,363.67

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Solution

The fourth proportional to 288,911,317,746.50, 398,698,550,115.41 and 160,452,766,363.67 is: 221,425,334,978.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,911,317,746.50 : 398,698,550,115.41 = 160,452,766,363.67 : x
  2. Step 2: Convert to fraction form
    288,911,317,746.50/398,698,550,115.41 = 160,452,766,363.67/x
  3. Step 3: Cross multiply
    288,911,317,746.50x = 398,698,550,115.41 × 160,452,766,363.67
  4. Step 4: Simplify right side
    288,911,317,746.50x = 63,972,285,311,201,853,833,216
  5. Step 5: Solve for x
    x = 63,972,285,311,201,853,833,216/288,911,317,746.50
  6. Step 6: Final answer
    x = 221,425,334,978.86

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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.