Finding the Fourth Proportional to 1,677,519,654.19, 2,516,642,706.44 and 642,380,572.05
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Solution
The fourth proportional to 1,677,519,654.19, 2,516,642,706.44 and 642,380,572.05 is: 963,709,949.61
Step by Step Solution
- Step 1: Write the proportion equation
1,677,519,654.19 : 2,516,642,706.44 = 642,380,572.05 : x - Step 2: Convert to fraction form
1,677,519,654.19/2,516,642,706.44 = 642,380,572.05/x - Step 3: Cross multiply
1,677,519,654.19x = 2,516,642,706.44 × 642,380,572.05 - Step 4: Simplify right side
1,677,519,654.19x = 1,616,642,381,400,594,944 - Step 5: Solve for x
x = 1,616,642,381,400,594,944/1,677,519,654.19 - Step 6: Final answer
x = 963,709,949.61
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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.