Finding the Fourth Proportional to 249,531,595.20, 374,322,405.60 and 85,747,780.80
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Solution
The fourth proportional to 249,531,595.20, 374,322,405.60 and 85,747,780.80 is: 128,630,266.47
Step by Step Solution
- Step 1: Write the proportion equation
249,531,595.20 : 374,322,405.60 = 85,747,780.80 : x - Step 2: Convert to fraction form
249,531,595.20/374,322,405.60 = 85,747,780.80/x - Step 3: Cross multiply
249,531,595.20x = 374,322,405.60 × 85,747,780.80 - Step 4: Simplify right side
249,531,595.20x = 32,097,315,583,917,492 - Step 5: Solve for x
x = 32,097,315,583,917,492/249,531,595.20 - Step 6: Final answer
x = 128,630,266.47
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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.