Home / 7,931,909.80-11,897,864.70-1,948,277.80

Finding the Fourth Proportional to 7,931,909.80, 11,897,864.70 and 1,948,277.80

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Solution

The fourth proportional to 7,931,909.80, 11,897,864.70 and 1,948,277.80 is: 2,922,416.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,931,909.80 : 11,897,864.70 = 1,948,277.80 : x
  2. Step 2: Convert to fraction form
    7,931,909.80/11,897,864.70 = 1,948,277.80/x
  3. Step 3: Cross multiply
    7,931,909.80x = 11,897,864.70 × 1,948,277.80
  4. Step 4: Simplify right side
    7,931,909.80x = 23,180,345,662,413.66
  5. Step 5: Solve for x
    x = 23,180,345,662,413.66/7,931,909.80
  6. Step 6: Final answer
    x = 2,922,416.70

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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.