Home / 296,788,413.95-445,186,409.60-78,436,869.74

Finding the Fourth Proportional to 296,788,413.95, 445,186,409.60 and 78,436,869.74

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Solution

The fourth proportional to 296,788,413.95, 445,186,409.60 and 78,436,869.74 is: 117,656,305.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,788,413.95 : 445,186,409.60 = 78,436,869.74 : x
  2. Step 2: Convert to fraction form
    296,788,413.95/445,186,409.60 = 78,436,869.74/x
  3. Step 3: Cross multiply
    296,788,413.95x = 445,186,409.60 × 78,436,869.74
  4. Step 4: Simplify right side
    296,788,413.95x = 34,919,028,419,813,484
  5. Step 5: Solve for x
    x = 34,919,028,419,813,484/296,788,413.95
  6. Step 6: Final answer
    x = 117,656,305.90

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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.