Finding the Fourth Proportional to 1,371,364,720.93, 2,057,592,140.12 and 438,831,248.82
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Solution
The fourth proportional to 1,371,364,720.93, 2,057,592,140.12 and 438,831,248.82 is: 658,421,289.85
Step by Step Solution
- Step 1: Write the proportion equation
1,371,364,720.93 : 2,057,592,140.12 = 438,831,248.82 : x - Step 2: Convert to fraction form
1,371,364,720.93/2,057,592,140.12 = 438,831,248.82/x - Step 3: Cross multiply
1,371,364,720.93x = 2,057,592,140.12 × 438,831,248.82 - Step 4: Simplify right side
1,371,364,720.93x = 902,935,728,411,075,968 - Step 5: Solve for x
x = 902,935,728,411,075,968/1,371,364,720.93 - Step 6: Final answer
x = 658,421,289.85
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.