Finding the Fourth Proportional to 818,126,587.80, 1,128,982,072.44 and 460,886,042.70
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Solution
The fourth proportional to 818,126,587.80, 1,128,982,072.44 and 460,886,042.70 is: 636,004,363.39
Step by Step Solution
- Step 1: Write the proportion equation
818,126,587.80 : 1,128,982,072.44 = 460,886,042.70 : x - Step 2: Convert to fraction form
818,126,587.80/1,128,982,072.44 = 460,886,042.70/x - Step 3: Cross multiply
818,126,587.80x = 1,128,982,072.44 × 460,886,042.70 - Step 4: Simplify right side
818,126,587.80x = 520,332,079,646,116,352 - Step 5: Solve for x
x = 520,332,079,646,116,352/818,126,587.80 - Step 6: Final answer
x = 636,004,363.39
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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.