Home / 209,985,028.80-314,977,543.20-188,821,867.20

Finding the Fourth Proportional to 209,985,028.80, 314,977,543.20 and 188,821,867.20

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Solution

The fourth proportional to 209,985,028.80, 314,977,543.20 and 188,821,867.20 is: 283,232,800.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,985,028.80 : 314,977,543.20 = 188,821,867.20 : x
  2. Step 2: Convert to fraction form
    209,985,028.80/314,977,543.20 = 188,821,867.20/x
  3. Step 3: Cross multiply
    209,985,028.80x = 314,977,543.20 × 188,821,867.20
  4. Step 4: Simplify right side
    209,985,028.80x = 59,474,647,833,092,656
  5. Step 5: Solve for x
    x = 59,474,647,833,092,656/209,985,028.80
  6. Step 6: Final answer
    x = 283,232,800.80

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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.