Home / 612,712,961.37-845,428,245.12-365,217,344.73

Finding the Fourth Proportional to 612,712,961.37, 845,428,245.12 and 365,217,344.73

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Solution

The fourth proportional to 612,712,961.37, 845,428,245.12 and 365,217,344.73 is: 503,931,005.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    612,712,961.37 : 845,428,245.12 = 365,217,344.73 : x
  2. Step 2: Convert to fraction form
    612,712,961.37/845,428,245.12 = 365,217,344.73/x
  3. Step 3: Cross multiply
    612,712,961.37x = 845,428,245.12 × 365,217,344.73
  4. Step 4: Simplify right side
    612,712,961.37x = 308,765,058,842,470,016
  5. Step 5: Solve for x
    x = 308,765,058,842,470,016/612,712,961.37
  6. Step 6: Final answer
    x = 503,931,005.72

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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.