Finding the Fourth Proportional to 1,326,517,349.84, 1,988,727,601.68 and 662,190,420.44
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Solution
The fourth proportional to 1,326,517,349.84, 1,988,727,601.68 and 662,190,420.44 is: 992,762,263.42
Step by Step Solution
- Step 1: Write the proportion equation
1,326,517,349.84 : 1,988,727,601.68 = 662,190,420.44 : x - Step 2: Convert to fraction form
1,326,517,349.84/1,988,727,601.68 = 662,190,420.44/x - Step 3: Cross multiply
1,326,517,349.84x = 1,988,727,601.68 × 662,190,420.44 - Step 4: Simplify right side
1,326,517,349.84x = 1,316,916,366,687,168,256 - Step 5: Solve for x
x = 1,316,916,366,687,168,256/1,326,517,349.84 - Step 6: Final answer
x = 992,762,263.42
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1.5x scale
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.