Finding the Fourth Proportional to 1,271,494,299.68, 1,754,267,776.08 and 742,476,672.80
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Solution
The fourth proportional to 1,271,494,299.68, 1,754,267,776.08 and 742,476,672.80 is: 1,024,387,527.27
Step by Step Solution
- Step 1: Write the proportion equation
1,271,494,299.68 : 1,754,267,776.08 = 742,476,672.80 : x - Step 2: Convert to fraction form
1,271,494,299.68/1,754,267,776.08 = 742,476,672.80/x - Step 3: Cross multiply
1,271,494,299.68x = 1,754,267,776.08 × 742,476,672.80 - Step 4: Simplify right side
1,271,494,299.68x = 1,302,502,901,584,133,632 - Step 5: Solve for x
x = 1,302,502,901,584,133,632/1,271,494,299.68 - Step 6: Final answer
x = 1,024,387,527.27
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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.