Home / 12,867,982.80-19,312,860.60-5,300,379.60

Finding the Fourth Proportional to 12,867,982.80, 19,312,860.60 and 5,300,379.60

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Solution

The fourth proportional to 12,867,982.80, 19,312,860.60 and 5,300,379.60 is: 7,955,053.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,867,982.80 : 19,312,860.60 = 5,300,379.60 : x
  2. Step 2: Convert to fraction form
    12,867,982.80/19,312,860.60 = 5,300,379.60/x
  3. Step 3: Cross multiply
    12,867,982.80x = 19,312,860.60 × 5,300,379.60
  4. Step 4: Simplify right side
    12,867,982.80x = 102,365,492,341,883.77
  5. Step 5: Solve for x
    x = 102,365,492,341,883.77/12,867,982.80
  6. Step 6: Final answer
    x = 7,955,053.56

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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.