Finding the Fourth Proportional to 847,067,726.48, 1,168,981,816.28 and 470,740,177.12
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Solution
The fourth proportional to 847,067,726.48, 1,168,981,816.28 and 470,740,177.12 is: 649,637,201.42
Step by Step Solution
- Step 1: Write the proportion equation
847,067,726.48 : 1,168,981,816.28 = 470,740,177.12 : x - Step 2: Convert to fraction form
847,067,726.48/1,168,981,816.28 = 470,740,177.12/x - Step 3: Cross multiply
847,067,726.48x = 1,168,981,816.28 × 470,740,177.12 - Step 4: Simplify right side
847,067,726.48x = 550,286,707,245,706,496 - Step 5: Solve for x
x = 550,286,707,245,706,496/847,067,726.48 - Step 6: Final answer
x = 649,637,201.42
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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.