Finding the Fourth Proportional to 1,771,478,836.40, 2,657,218,254.60 and 1,312,313,812.40
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Solution
The fourth proportional to 1,771,478,836.40, 2,657,218,254.60 and 1,312,313,812.40 is: 1,968,470,718.60
Step by Step Solution
- Step 1: Write the proportion equation
1,771,478,836.40 : 2,657,218,254.60 = 1,312,313,812.40 : x - Step 2: Convert to fraction form
1,771,478,836.40/2,657,218,254.60 = 1,312,313,812.40/x - Step 3: Cross multiply
1,771,478,836.40x = 2,657,218,254.60 × 1,312,313,812.40 - Step 4: Simplify right side
1,771,478,836.40x = 3,487,104,218,072,999,936 - Step 5: Solve for x
x = 3,487,104,218,072,999,936/1,771,478,836.40 - Step 6: Final answer
x = 1,968,470,718.60
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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.