Finding the Fourth Proportional to 1,692,386,731.20, 2,538,580,096.80 and 965,448,926.40
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Solution
The fourth proportional to 1,692,386,731.20, 2,538,580,096.80 and 965,448,926.40 is: 1,448,173,389.60
Step by Step Solution
- Step 1: Write the proportion equation
1,692,386,731.20 : 2,538,580,096.80 = 965,448,926.40 : x - Step 2: Convert to fraction form
1,692,386,731.20/2,538,580,096.80 = 965,448,926.40/x - Step 3: Cross multiply
1,692,386,731.20x = 2,538,580,096.80 × 965,448,926.40 - Step 4: Simplify right side
1,692,386,731.20x = 2,450,869,429,035,968,000 - Step 5: Solve for x
x = 2,450,869,429,035,968,000/1,692,386,731.20 - Step 6: Final answer
x = 1,448,173,389.60
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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.