Finding the Fourth Proportional to 1,016,108,455.05, 1,402,722,351.68 and 681,458,562.70
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Solution
The fourth proportional to 1,016,108,455.05, 1,402,722,351.68 and 681,458,562.70 is: 940,743,237.48
Step by Step Solution
- Step 1: Write the proportion equation
1,016,108,455.05 : 1,402,722,351.68 = 681,458,562.70 : x - Step 2: Convert to fraction form
1,016,108,455.05/1,402,722,351.68 = 681,458,562.70/x - Step 3: Cross multiply
1,016,108,455.05x = 1,402,722,351.68 × 681,458,562.70 - Step 4: Simplify right side
1,016,108,455.05x = 955,897,157,636,102,528 - Step 5: Solve for x
x = 955,897,157,636,102,528/1,016,108,455.05 - Step 6: Final answer
x = 940,743,237.48
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1.5x scale
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.