Finding the Fourth Proportional to 3,762,439,781.52, 5,192,497,459.80 and 2,069,192,528.40
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Solution
The fourth proportional to 3,762,439,781.52, 5,192,497,459.80 and 2,069,192,528.40 is: 2,855,667,484.79
Step by Step Solution
- Step 1: Write the proportion equation
3,762,439,781.52 : 5,192,497,459.80 = 2,069,192,528.40 : x - Step 2: Convert to fraction form
3,762,439,781.52/5,192,497,459.80 = 2,069,192,528.40/x - Step 3: Cross multiply
3,762,439,781.52x = 5,192,497,459.80 × 2,069,192,528.40 - Step 4: Simplify right side
3,762,439,781.52x = 10,744,276,947,554,140,160 - Step 5: Solve for x
x = 10,744,276,947,554,140,160/3,762,439,781.52 - Step 6: Final answer
x = 2,855,667,484.79
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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.