Finding the Fourth Proportional to 1,208,110,708.70, 1,666,248,286.20 and 784,860,740.30
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Solution
The fourth proportional to 1,208,110,708.70, 1,666,248,286.20 and 784,860,740.30 is: 1,082,494,223.43
Step by Step Solution
- Step 1: Write the proportion equation
1,208,110,708.70 : 1,666,248,286.20 = 784,860,740.30 : x - Step 2: Convert to fraction form
1,208,110,708.70/1,666,248,286.20 = 784,860,740.30/x - Step 3: Cross multiply
1,208,110,708.70x = 1,666,248,286.20 × 784,860,740.30 - Step 4: Simplify right side
1,208,110,708.70x = 1,307,772,863,430,538,240 - Step 5: Solve for x
x = 1,307,772,863,430,538,240/1,208,110,708.70 - Step 6: Final answer
x = 1,082,494,223.43
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.