Finding the Fourth Proportional to 611,352,208.20, 917,028,312.30 and 202,408,358.70
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Solution
The fourth proportional to 611,352,208.20, 917,028,312.30 and 202,408,358.70 is: 303,612,538.05
Step by Step Solution
- Step 1: Write the proportion equation
611,352,208.20 : 917,028,312.30 = 202,408,358.70 : x - Step 2: Convert to fraction form
611,352,208.20/917,028,312.30 = 202,408,358.70/x - Step 3: Cross multiply
611,352,208.20x = 917,028,312.30 × 202,408,358.70 - Step 4: Simplify right side
611,352,208.20x = 185,614,195,574,074,016 - Step 5: Solve for x
x = 185,614,195,574,074,016/611,352,208.20 - Step 6: Final answer
x = 303,612,538.05
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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.