Home / 305,910,749.20-422,156,894.72-166,681,510.96

Finding the Fourth Proportional to 305,910,749.20, 422,156,894.72 and 166,681,510.96

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Solution

The fourth proportional to 305,910,749.20, 422,156,894.72 and 166,681,510.96 is: 230,020,518.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,910,749.20 : 422,156,894.72 = 166,681,510.96 : x
  2. Step 2: Convert to fraction form
    305,910,749.20/422,156,894.72 = 166,681,510.96/x
  3. Step 3: Cross multiply
    305,910,749.20x = 422,156,894.72 × 166,681,510.96
  4. Step 4: Simplify right side
    305,910,749.20x = 70,365,749,074,111,256
  5. Step 5: Solve for x
    x = 70,365,749,074,111,256/305,910,749.20
  6. Step 6: Final answer
    x = 230,020,518.27

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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.