Finding the Fourth Proportional to 3,130,989,913.24, 4,320,768,860.16 and 1,721,317,860.16
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Solution
The fourth proportional to 3,130,989,913.24, 4,320,768,860.16 and 1,721,317,860.16 is: 2,375,420,175.31
Step by Step Solution
- Step 1: Write the proportion equation
3,130,989,913.24 : 4,320,768,860.16 = 1,721,317,860.16 : x - Step 2: Convert to fraction form
3,130,989,913.24/4,320,768,860.16 = 1,721,317,860.16/x - Step 3: Cross multiply
3,130,989,913.24x = 4,320,768,860.16 × 1,721,317,860.16 - Step 4: Simplify right side
3,130,989,913.24x = 7,437,416,608,616,573,952 - Step 5: Solve for x
x = 7,437,416,608,616,573,952/3,130,989,913.24 - Step 6: Final answer
x = 2,375,420,175.31
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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.