Home / 1,200,663,032.40-1,800,994,548.60-788,743,113.30

Finding the Fourth Proportional to 1,200,663,032.40, 1,800,994,548.60 and 788,743,113.30

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Solution

The fourth proportional to 1,200,663,032.40, 1,800,994,548.60 and 788,743,113.30 is: 1,183,114,669.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,200,663,032.40 : 1,800,994,548.60 = 788,743,113.30 : x
  2. Step 2: Convert to fraction form
    1,200,663,032.40/1,800,994,548.60 = 788,743,113.30/x
  3. Step 3: Cross multiply
    1,200,663,032.40x = 1,800,994,548.60 × 788,743,113.30
  4. Step 4: Simplify right side
    1,200,663,032.40x = 1,420,522,047,299,091,968
  5. Step 5: Solve for x
    x = 1,420,522,047,299,091,968/1,200,663,032.40
  6. Step 6: Final answer
    x = 1,183,114,669.95

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Double scale
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Similar ratio
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1.5x scale

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.