Home / 5,185,811.80-7,778,717.70-4,920,091.30

Finding the Fourth Proportional to 5,185,811.80, 7,778,717.70 and 4,920,091.30

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Solution

The fourth proportional to 5,185,811.80, 7,778,717.70 and 4,920,091.30 is: 7,380,136.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,185,811.80 : 7,778,717.70 = 4,920,091.30 : x
  2. Step 2: Convert to fraction form
    5,185,811.80/7,778,717.70 = 4,920,091.30/x
  3. Step 3: Cross multiply
    5,185,811.80x = 7,778,717.70 × 4,920,091.30
  4. Step 4: Simplify right side
    5,185,811.80x = 38,272,001,280,926.01
  5. Step 5: Solve for x
    x = 38,272,001,280,926.01/5,185,811.80
  6. Step 6: Final answer
    x = 7,380,136.95

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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.