Finding the Fourth Proportional to 1,657,606,755.63, 2,287,485,685.99 and 904,919,931.05
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Solution
The fourth proportional to 1,657,606,755.63, 2,287,485,685.99 and 904,919,931.05 is: 1,248,783,152.11
Step by Step Solution
- Step 1: Write the proportion equation
1,657,606,755.63 : 2,287,485,685.99 = 904,919,931.05 : x - Step 2: Convert to fraction form
1,657,606,755.63/2,287,485,685.99 = 904,919,931.05/x - Step 3: Cross multiply
1,657,606,755.63x = 2,287,485,685.99 × 904,919,931.05 - Step 4: Simplify right side
1,657,606,755.63x = 2,069,991,389,247,389,440 - Step 5: Solve for x
x = 2,069,991,389,247,389,440/1,657,606,755.63 - Step 6: Final answer
x = 1,248,783,152.11
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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.