Finding the Fourth Proportional to 409,068,538.31, 613,688,984.62 and 132,698,172.99
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Solution
The fourth proportional to 409,068,538.31, 613,688,984.62 and 132,698,172.99 is: 199,075,214.59
Step by Step Solution
- Step 1: Write the proportion equation
409,068,538.31 : 613,688,984.62 = 132,698,172.99 : x - Step 2: Convert to fraction form
409,068,538.31/613,688,984.62 = 132,698,172.99/x - Step 3: Cross multiply
409,068,538.31x = 613,688,984.62 × 132,698,172.99 - Step 4: Simplify right side
409,068,538.31x = 81,435,407,045,131,792 - Step 5: Solve for x
x = 81,435,407,045,131,792/409,068,538.31 - Step 6: Final answer
x = 199,075,214.59
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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.