Home / 298,306,829,111.98-411,663,589,315.92-161,129,654,639.73

Finding the Fourth Proportional to 298,306,829,111.98, 411,663,589,315.92 and 161,129,654,639.73

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Solution

The fourth proportional to 298,306,829,111.98, 411,663,589,315.92 and 161,129,654,639.73 is: 222,359,012,603.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,306,829,111.98 : 411,663,589,315.92 = 161,129,654,639.73 : x
  2. Step 2: Convert to fraction form
    298,306,829,111.98/411,663,589,315.92 = 161,129,654,639.73/x
  3. Step 3: Cross multiply
    298,306,829,111.98x = 411,663,589,315.92 × 161,129,654,639.73
  4. Step 4: Simplify right side
    298,306,829,111.98x = 66,331,211,974,225,835,327,488
  5. Step 5: Solve for x
    x = 66,331,211,974,225,835,327,488/298,306,829,111.98
  6. Step 6: Final answer
    x = 222,359,012,603.52

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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.