Finding the Fourth Proportional to 1,351,828,266.81, 1,865,498,316.80 and 748,996,691.15
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Solution
The fourth proportional to 1,351,828,266.81, 1,865,498,316.80 and 748,996,691.15 is: 1,033,601,753.21
Step by Step Solution
- Step 1: Write the proportion equation
1,351,828,266.81 : 1,865,498,316.80 = 748,996,691.15 : x - Step 2: Convert to fraction form
1,351,828,266.81/1,865,498,316.80 = 748,996,691.15/x - Step 3: Cross multiply
1,351,828,266.81x = 1,865,498,316.80 × 748,996,691.15 - Step 4: Simplify right side
1,351,828,266.81x = 1,397,252,066,616,022,016 - Step 5: Solve for x
x = 1,397,252,066,616,022,016/1,351,828,266.81 - Step 6: Final answer
x = 1,033,601,753.21
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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.