Finding the Fourth Proportional to 19,870,207.80, 29,805,311.70 and 15,565,535.70
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Solution
The fourth proportional to 19,870,207.80, 29,805,311.70 and 15,565,535.70 is: 23,348,303.55
Step by Step Solution
- Step 1: Write the proportion equation
19,870,207.80 : 29,805,311.70 = 15,565,535.70 : x - Step 2: Convert to fraction form
19,870,207.80/29,805,311.70 = 15,565,535.70/x - Step 3: Cross multiply
19,870,207.80x = 29,805,311.70 × 15,565,535.70 - Step 4: Simplify right side
19,870,207.80x = 463,935,643,315,977.62 - Step 5: Solve for x
x = 463,935,643,315,977.62/19,870,207.80 - Step 6: Final answer
x = 23,348,303.55
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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.