Finding the Fourth Proportional to 121,420,909.60, 182,068,378.80 and 44,704,448.80
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Solution
The fourth proportional to 121,420,909.60, 182,068,378.80 and 44,704,448.80 is: 67,033,483.32
Step by Step Solution
- Step 1: Write the proportion equation
121,420,909.60 : 182,068,378.80 = 44,704,448.80 : x - Step 2: Convert to fraction form
121,420,909.60/182,068,378.80 = 44,704,448.80/x - Step 3: Cross multiply
121,420,909.60x = 182,068,378.80 × 44,704,448.80 - Step 4: Simplify right side
121,420,909.60x = 8,139,266,518,163,605 - Step 5: Solve for x
x = 8,139,266,518,163,605/121,420,909.60 - Step 6: Final answer
x = 67,033,483.32
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1.5x scale
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.