Finding the Fourth Proportional to 253,128,533.04, 379,729,184.31 and 78,265,204.08
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Solution
The fourth proportional to 253,128,533.04, 379,729,184.31 and 78,265,204.08 is: 117,409,055.98
Step by Step Solution
- Step 1: Write the proportion equation
253,128,533.04 : 379,729,184.31 = 78,265,204.08 : x - Step 2: Convert to fraction form
253,128,533.04/379,729,184.31 = 78,265,204.08/x - Step 3: Cross multiply
253,128,533.04x = 379,729,184.31 × 78,265,204.08 - Step 4: Simplify right side
253,128,533.04x = 29,719,582,105,154,084 - Step 5: Solve for x
x = 29,719,582,105,154,084/253,128,533.04 - Step 6: Final answer
x = 117,409,055.98
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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.