Finding the Fourth Proportional to 47,290,386.20, 70,935,579.30 and 31,134,579.80
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Solution
The fourth proportional to 47,290,386.20, 70,935,579.30 and 31,134,579.80 is: 46,701,869.70
Step by Step Solution
- Step 1: Write the proportion equation
47,290,386.20 : 70,935,579.30 = 31,134,579.80 : x - Step 2: Convert to fraction form
47,290,386.20/70,935,579.30 = 31,134,579.80/x - Step 3: Cross multiply
47,290,386.20x = 70,935,579.30 × 31,134,579.80 - Step 4: Simplify right side
47,290,386.20x = 2,208,549,454,375,078 - Step 5: Solve for x
x = 2,208,549,454,375,078/47,290,386.20 - Step 6: Final answer
x = 46,701,869.70
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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.