Finding the Fourth Proportional to 21,658,864.32, 29,889,267.84 and 11,867,752.80
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Solution
The fourth proportional to 21,658,864.32, 29,889,267.84 and 11,867,752.80 is: 16,377,518.08
Step by Step Solution
- Step 1: Write the proportion equation
21,658,864.32 : 29,889,267.84 = 11,867,752.80 : x - Step 2: Convert to fraction form
21,658,864.32/29,889,267.84 = 11,867,752.80/x - Step 3: Cross multiply
21,658,864.32x = 29,889,267.84 × 11,867,752.80 - Step 4: Simplify right side
21,658,864.32x = 354,718,442,098,110 - Step 5: Solve for x
x = 354,718,442,098,110/21,658,864.32 - Step 6: Final answer
x = 16,377,518.08
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.