Finding the Fourth Proportional to 31,266,058.20, 46,941,077.70 and 19,956,643.80
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Solution
The fourth proportional to 31,266,058.20, 46,941,077.70 and 19,956,643.80 is: 29,961,767.53
Step by Step Solution
- Step 1: Write the proportion equation
31,266,058.20 : 46,941,077.70 = 19,956,643.80 : x - Step 2: Convert to fraction form
31,266,058.20/46,941,077.70 = 19,956,643.80/x - Step 3: Cross multiply
31,266,058.20x = 46,941,077.70 × 19,956,643.80 - Step 4: Simplify right side
31,266,058.20x = 936,786,367,247,023.38 - Step 5: Solve for x
x = 936,786,367,247,023.38/31,266,058.20 - Step 6: Final answer
x = 29,961,767.53
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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.