Finding the Fourth Proportional to 1,780,099,230.08, 2,456,490,399 and 987,143,199.68
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Solution
The fourth proportional to 1,780,099,230.08, 2,456,490,399 and 987,143,199.68 is: 1,362,231,807.91
Step by Step Solution
- Step 1: Write the proportion equation
1,780,099,230.08 : 2,456,490,399 = 987,143,199.68 : x - Step 2: Convert to fraction form
1,780,099,230.08/2,456,490,399 = 987,143,199.68/x - Step 3: Cross multiply
1,780,099,230.08x = 2,456,490,399 × 987,143,199.68 - Step 4: Simplify right side
1,780,099,230.08x = 2,424,907,792,452,059,648 - Step 5: Solve for x
x = 2,424,907,792,452,059,648/1,780,099,230.08 - Step 6: Final answer
x = 1,362,231,807.91
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.