Home / 305,910,862.30-422,157,050.40-166,681,623.61

Finding the Fourth Proportional to 305,910,862.30, 422,157,050.40 and 166,681,623.61

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Solution

The fourth proportional to 305,910,862.30, 422,157,050.40 and 166,681,623.61 is: 230,020,673.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,910,862.30 : 422,157,050.40 = 166,681,623.61 : x
  2. Step 2: Convert to fraction form
    305,910,862.30/422,157,050.40 = 166,681,623.61/x
  3. Step 3: Cross multiply
    305,910,862.30x = 422,157,050.40 × 166,681,623.61
  4. Step 4: Simplify right side
    305,910,862.30x = 70,365,822,579,080,600
  5. Step 5: Solve for x
    x = 70,365,822,579,080,600/305,910,862.30
  6. Step 6: Final answer
    x = 230,020,673.51

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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.