Finding the Fourth Proportional to 31,690,718.20, 47,536,077.30 and 29,549,207.80
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Solution
The fourth proportional to 31,690,718.20, 47,536,077.30 and 29,549,207.80 is: 44,323,811.70
Step by Step Solution
- Step 1: Write the proportion equation
31,690,718.20 : 47,536,077.30 = 29,549,207.80 : x - Step 2: Convert to fraction form
31,690,718.20/47,536,077.30 = 29,549,207.80/x - Step 3: Cross multiply
31,690,718.20x = 47,536,077.30 × 29,549,207.80 - Step 4: Simplify right side
31,690,718.20x = 1,404,653,426,134,563 - Step 5: Solve for x
x = 1,404,653,426,134,563/31,690,718.20 - Step 6: Final answer
x = 44,323,811.70
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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.