Home / 213,718,200,221.66-320,631,562,506.78-98,934,619,779.76

Finding the Fourth Proportional to 213,718,200,221.66, 320,631,562,506.78 and 98,934,619,779.76

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Solution

The fourth proportional to 213,718,200,221.66, 320,631,562,506.78 and 98,934,619,779.76 is: 148,427,048,763.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,718,200,221.66 : 320,631,562,506.78 = 98,934,619,779.76 : x
  2. Step 2: Convert to fraction form
    213,718,200,221.66/320,631,562,506.78 = 98,934,619,779.76/x
  3. Step 3: Cross multiply
    213,718,200,221.66x = 320,631,562,506.78 × 98,934,619,779.76
  4. Step 4: Simplify right side
    213,718,200,221.66x = 31,721,561,725,998,630,699,008
  5. Step 5: Solve for x
    x = 31,721,561,725,998,630,699,008/213,718,200,221.66
  6. Step 6: Final answer
    x = 148,427,048,763.74

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.