Finding the Fourth Proportional to 26,795,562.12, 36,986,201.70 and 21,298,690.68
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Solution
The fourth proportional to 26,795,562.12, 36,986,201.70 and 21,298,690.68 is: 29,398,811.11
Step by Step Solution
- Step 1: Write the proportion equation
26,795,562.12 : 36,986,201.70 = 21,298,690.68 : x - Step 2: Convert to fraction form
26,795,562.12/36,986,201.70 = 21,298,690.68/x - Step 3: Cross multiply
26,795,562.12x = 36,986,201.70 × 21,298,690.68 - Step 4: Simplify right side
26,795,562.12x = 787,757,669,436,390.25 - Step 5: Solve for x
x = 787,757,669,436,390.25/26,795,562.12 - Step 6: Final answer
x = 29,398,811.11
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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.