Finding the Fourth Proportional to 1,770,129,954.21, 2,442,715,302.65 and 977,158,901.73
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Solution
The fourth proportional to 1,770,129,954.21, 2,442,715,302.65 and 977,158,901.73 is: 1,348,443,935.82
Step by Step Solution
- Step 1: Write the proportion equation
1,770,129,954.21 : 2,442,715,302.65 = 977,158,901.73 : x - Step 2: Convert to fraction form
1,770,129,954.21/2,442,715,302.65 = 977,158,901.73/x - Step 3: Cross multiply
1,770,129,954.21x = 2,442,715,302.65 × 977,158,901.73 - Step 4: Simplify right side
1,770,129,954.21x = 2,386,921,002,371,652,608 - Step 5: Solve for x
x = 2,386,921,002,371,652,608/1,770,129,954.21 - Step 6: Final answer
x = 1,348,443,935.82
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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.