Finding the Fourth Proportional to 1,415,472,857.28, 2,121,675,582.24 and 724,432,645.44
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Solution
The fourth proportional to 1,415,472,857.28, 2,121,675,582.24 and 724,432,645.44 is: 1,085,864,025.51
Step by Step Solution
- Step 1: Write the proportion equation
1,415,472,857.28 : 2,121,675,582.24 = 724,432,645.44 : x - Step 2: Convert to fraction form
1,415,472,857.28/2,121,675,582.24 = 724,432,645.44/x - Step 3: Cross multiply
1,415,472,857.28x = 2,121,675,582.24 × 724,432,645.44 - Step 4: Simplify right side
1,415,472,857.28x = 1,537,011,054,807,575,552 - Step 5: Solve for x
x = 1,537,011,054,807,575,552/1,415,472,857.28 - Step 6: Final answer
x = 1,085,864,025.51
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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.