Finding the Fourth Proportional to 84,552,414.30, 126,828,621.45 and 70,204,139.10
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Solution
The fourth proportional to 84,552,414.30, 126,828,621.45 and 70,204,139.10 is: 105,306,208.65
Step by Step Solution
- Step 1: Write the proportion equation
84,552,414.30 : 126,828,621.45 = 70,204,139.10 : x - Step 2: Convert to fraction form
84,552,414.30/126,828,621.45 = 70,204,139.10/x - Step 3: Cross multiply
84,552,414.30x = 126,828,621.45 × 70,204,139.10 - Step 4: Simplify right side
84,552,414.30x = 8,903,894,182,137,043 - Step 5: Solve for x
x = 8,903,894,182,137,043/84,552,414.30 - Step 6: Final answer
x = 105,306,208.65
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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.