Finding the Fourth Proportional to 276,163,457.78, 381,104,790.54 and 152,403,249.98
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Solution
The fourth proportional to 276,163,457.78, 381,104,790.54 and 152,403,249.98 is: 210,316,053.86
Step by Step Solution
- Step 1: Write the proportion equation
276,163,457.78 : 381,104,790.54 = 152,403,249.98 : x - Step 2: Convert to fraction form
276,163,457.78/381,104,790.54 = 152,403,249.98/x - Step 3: Cross multiply
276,163,457.78x = 381,104,790.54 × 152,403,249.98 - Step 4: Simplify right side
276,163,457.78x = 58,081,608,661,243,160 - Step 5: Solve for x
x = 58,081,608,661,243,160/276,163,457.78 - Step 6: Final answer
x = 210,316,053.86
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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.