Home / 1,993,003,251.40-2,989,489,130.70-519,140,211.40

Finding the Fourth Proportional to 1,993,003,251.40, 2,989,489,130.70 and 519,140,211.40

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Solution

The fourth proportional to 1,993,003,251.40, 2,989,489,130.70 and 519,140,211.40 is: 778,706,215.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,993,003,251.40 : 2,989,489,130.70 = 519,140,211.40 : x
  2. Step 2: Convert to fraction form
    1,993,003,251.40/2,989,489,130.70 = 519,140,211.40/x
  3. Step 3: Cross multiply
    1,993,003,251.40x = 2,989,489,130.70 × 519,140,211.40
  4. Step 4: Simplify right side
    1,993,003,251.40x = 1,551,964,019,289,600,000
  5. Step 5: Solve for x
    x = 1,551,964,019,289,600,000/1,993,003,251.40
  6. Step 6: Final answer
    x = 778,706,215.46

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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.