Finding the Fourth Proportional to 386,456,860.08, 533,312,786.07 and 210,246,116.54
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Solution
The fourth proportional to 386,456,860.08, 533,312,786.07 and 210,246,116.54 is: 290,140,902.52
Step by Step Solution
- Step 1: Write the proportion equation
386,456,860.08 : 533,312,786.07 = 210,246,116.54 : x - Step 2: Convert to fraction form
386,456,860.08/533,312,786.07 = 210,246,116.54/x - Step 3: Cross multiply
386,456,860.08x = 533,312,786.07 × 210,246,116.54 - Step 4: Simplify right side
386,456,860.08x = 112,126,942,169,678,736 - Step 5: Solve for x
x = 112,126,942,169,678,736/386,456,860.08 - Step 6: Final answer
x = 290,140,902.52
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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.