Finding the Fourth Proportional to 1,181,959,636.80, 1,772,939,455.20 and 692,183,611.20
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Solution
The fourth proportional to 1,181,959,636.80, 1,772,939,455.20 and 692,183,611.20 is: 1,038,275,416.80
Step by Step Solution
- Step 1: Write the proportion equation
1,181,959,636.80 : 1,772,939,455.20 = 692,183,611.20 : x - Step 2: Convert to fraction form
1,181,959,636.80/1,772,939,455.20 = 692,183,611.20/x - Step 3: Cross multiply
1,181,959,636.80x = 1,772,939,455.20 × 692,183,611.20 - Step 4: Simplify right side
1,181,959,636.80x = 1,227,199,634,539,296,768 - Step 5: Solve for x
x = 1,227,199,634,539,296,768/1,181,959,636.80 - Step 6: Final answer
x = 1,038,275,416.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.