Finding the Fourth Proportional to 834,069,776.20, 1,251,104,664.30 and 769,572,521.80
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Solution
The fourth proportional to 834,069,776.20, 1,251,104,664.30 and 769,572,521.80 is: 1,154,358,782.70
Step by Step Solution
- Step 1: Write the proportion equation
834,069,776.20 : 1,251,104,664.30 = 769,572,521.80 : x - Step 2: Convert to fraction form
834,069,776.20/1,251,104,664.30 = 769,572,521.80/x - Step 3: Cross multiply
834,069,776.20x = 1,251,104,664.30 × 769,572,521.80 - Step 4: Simplify right side
834,069,776.20x = 962,815,771,541,093,376 - Step 5: Solve for x
x = 962,815,771,541,093,376/834,069,776.20 - Step 6: Final answer
x = 1,154,358,782.70
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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.