Finding the Fourth Proportional to 245,726,246.13, 368,590,740.99 and 81,963,550.86
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Solution
The fourth proportional to 245,726,246.13, 368,590,740.99 and 81,963,550.86 is: 122,945,783.86
Step by Step Solution
- Step 1: Write the proportion equation
245,726,246.13 : 368,590,740.99 = 81,963,550.86 : x - Step 2: Convert to fraction form
245,726,246.13/368,590,740.99 = 81,963,550.86/x - Step 3: Cross multiply
245,726,246.13x = 368,590,740.99 × 81,963,550.86 - Step 4: Simplify right side
245,726,246.13x = 30,211,005,945,658,952 - Step 5: Solve for x
x = 30,211,005,945,658,952/245,726,246.13 - Step 6: Final answer
x = 122,945,783.86
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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.