Finding the Fourth Proportional to 177,643,871.60, 266,465,807.40 and 137,283,321.20
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Solution
The fourth proportional to 177,643,871.60, 266,465,807.40 and 137,283,321.20 is: 205,924,981.80
Step by Step Solution
- Step 1: Write the proportion equation
177,643,871.60 : 266,465,807.40 = 137,283,321.20 : x - Step 2: Convert to fraction form
177,643,871.60/266,465,807.40 = 137,283,321.20/x - Step 3: Cross multiply
177,643,871.60x = 266,465,807.40 × 137,283,321.20 - Step 4: Simplify right side
177,643,871.60x = 36,581,311,026,111,536 - Step 5: Solve for x
x = 36,581,311,026,111,536/177,643,871.60 - Step 6: Final answer
x = 205,924,981.80
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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.