Finding the Fourth Proportional to 1,770,106,291.20, 2,655,159,436.80 and 664,709,011.20
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Solution
The fourth proportional to 1,770,106,291.20, 2,655,159,436.80 and 664,709,011.20 is: 997,063,516.80
Step by Step Solution
- Step 1: Write the proportion equation
1,770,106,291.20 : 2,655,159,436.80 = 664,709,011.20 : x - Step 2: Convert to fraction form
1,770,106,291.20/2,655,159,436.80 = 664,709,011.20/x - Step 3: Cross multiply
1,770,106,291.20x = 2,655,159,436.80 × 664,709,011.20 - Step 4: Simplify right side
1,770,106,291.20x = 1,764,908,403,813,677,056 - Step 5: Solve for x
x = 1,764,908,403,813,677,056/1,770,106,291.20 - Step 6: Final answer
x = 997,063,516.80
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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.