Finding the Fourth Proportional to 1,125,013,007,148.70, 1,552,651,045,457.60 and 668,273,295,646.32
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Solution
The fourth proportional to 1,125,013,007,148.70, 1,552,651,045,457.60 and 668,273,295,646.32 is: 922,296,208,615.75
Step by Step Solution
- Step 1: Write the proportion equation
1,125,013,007,148.70 : 1,552,651,045,457.60 = 668,273,295,646.32 : x - Step 2: Convert to fraction form
1,125,013,007,148.70/1,552,651,045,457.60 = 668,273,295,646.32/x - Step 3: Cross multiply
1,125,013,007,148.70x = 1,552,651,045,457.60 × 668,273,295,646.32 - Step 4: Simplify right side
1,125,013,007,148.70x = 1,037,595,231,136,654,540,406,784 - Step 5: Solve for x
x = 1,037,595,231,136,654,540,406,784/1,125,013,007,148.70 - Step 6: Final answer
x = 922,296,208,615.75
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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.