Finding the Fourth Proportional to 31,539,808.40, 47,291,050.20 and 16,423,264.40
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Solution
The fourth proportional to 31,539,808.40, 47,291,050.20 and 16,423,264.40 is: 24,625,178.80
Step by Step Solution
- Step 1: Write the proportion equation
31,539,808.40 : 47,291,050.20 = 16,423,264.40 : x - Step 2: Convert to fraction form
31,539,808.40/47,291,050.20 = 16,423,264.40/x - Step 3: Cross multiply
31,539,808.40x = 47,291,050.20 × 16,423,264.40 - Step 4: Simplify right side
31,539,808.40x = 776,673,421,188,273 - Step 5: Solve for x
x = 776,673,421,188,273/31,539,808.40 - Step 6: Final answer
x = 24,625,178.80
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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.