Finding the Fourth Proportional to 847,067,727.48, 1,168,981,817.66 and 470,740,178.12
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Solution
The fourth proportional to 847,067,727.48, 1,168,981,817.66 and 470,740,178.12 is: 649,637,202.80
Step by Step Solution
- Step 1: Write the proportion equation
847,067,727.48 : 1,168,981,817.66 = 470,740,178.12 : x - Step 2: Convert to fraction form
847,067,727.48/1,168,981,817.66 = 470,740,178.12/x - Step 3: Cross multiply
847,067,727.48x = 1,168,981,817.66 × 470,740,178.12 - Step 4: Simplify right side
847,067,727.48x = 550,286,709,064,309,824 - Step 5: Solve for x
x = 550,286,709,064,309,824/847,067,727.48 - Step 6: Final answer
x = 649,637,202.80
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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.