Finding the Fourth Proportional to 3,579,158,907, 5,368,929,679.26 and 1,125,687,128.76
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Solution
The fourth proportional to 3,579,158,907, 5,368,929,679.26 and 1,125,687,128.76 is: 1,688,590,865.12
Step by Step Solution
- Step 1: Write the proportion equation
3,579,158,907 : 5,368,929,679.26 = 1,125,687,128.76 : x - Step 2: Convert to fraction form
3,579,158,907/5,368,929,679.26 = 1,125,687,128.76/x - Step 3: Cross multiply
3,579,158,907x = 5,368,929,679.26 × 1,125,687,128.76 - Step 4: Simplify right side
3,579,158,907x = 6,043,735,035,160,537,088 - Step 5: Solve for x
x = 6,043,735,035,160,537,088/3,579,158,907 - Step 6: Final answer
x = 1,688,590,865.12
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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.