Finding the Fourth Proportional to 1,062,926,794.80, 1,594,390,192.20 and 625,778,737.20
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Solution
The fourth proportional to 1,062,926,794.80, 1,594,390,192.20 and 625,778,737.20 is: 938,668,105.80
Step by Step Solution
- Step 1: Write the proportion equation
1,062,926,794.80 : 1,594,390,192.20 = 625,778,737.20 : x - Step 2: Convert to fraction form
1,062,926,794.80/1,594,390,192.20 = 625,778,737.20/x - Step 3: Cross multiply
1,062,926,794.80x = 1,594,390,192.20 × 625,778,737.20 - Step 4: Simplify right side
1,062,926,794.80x = 997,735,481,078,981,376 - Step 5: Solve for x
x = 997,735,481,078,981,376/1,062,926,794.80 - Step 6: Final answer
x = 938,668,105.80
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1.5x scale
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.