Finding the Fourth Proportional to 212,190,254.42, 292,862,665.41 and 132,842,226.74
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Solution
The fourth proportional to 212,190,254.42, 292,862,665.41 and 132,842,226.74 is: 183,347,386.56
Step by Step Solution
- Step 1: Write the proportion equation
212,190,254.42 : 292,862,665.41 = 132,842,226.74 : x - Step 2: Convert to fraction form
212,190,254.42/292,862,665.41 = 132,842,226.74/x - Step 3: Cross multiply
212,190,254.42x = 292,862,665.41 × 132,842,226.74 - Step 4: Simplify right side
212,190,254.42x = 38,904,528,602,075,976 - Step 5: Solve for x
x = 38,904,528,602,075,976/212,190,254.42 - Step 6: Final answer
x = 183,347,386.56
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.