Finding the Fourth Proportional to 1,121,782,718.67, 1,548,252,382.44 and 652,156,444.66
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Solution
The fourth proportional to 1,121,782,718.67, 1,548,252,382.44 and 652,156,444.66 is: 900,087,648.32
Step by Step Solution
- Step 1: Write the proportion equation
1,121,782,718.67 : 1,548,252,382.44 = 652,156,444.66 : x - Step 2: Convert to fraction form
1,121,782,718.67/1,548,252,382.44 = 652,156,444.66/x - Step 3: Cross multiply
1,121,782,718.67x = 1,548,252,382.44 × 652,156,444.66 - Step 4: Simplify right side
1,121,782,718.67x = 1,009,702,769,165,547,520 - Step 5: Solve for x
x = 1,009,702,769,165,547,520/1,121,782,718.67 - Step 6: Final answer
x = 900,087,648.32
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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.