Finding the Fourth Proportional to 268,086,807.70, 402,130,211.55 and 166,050,135.70
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Solution
The fourth proportional to 268,086,807.70, 402,130,211.55 and 166,050,135.70 is: 249,075,203.55
Step by Step Solution
- Step 1: Write the proportion equation
268,086,807.70 : 402,130,211.55 = 166,050,135.70 : x - Step 2: Convert to fraction form
268,086,807.70/402,130,211.55 = 166,050,135.70/x - Step 3: Cross multiply
268,086,807.70x = 402,130,211.55 × 166,050,135.70 - Step 4: Simplify right side
268,086,807.70x = 66,773,776,196,947,208 - Step 5: Solve for x
x = 66,773,776,196,947,208/268,086,807.70 - Step 6: Final answer
x = 249,075,203.55
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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.