Finding the Fourth Proportional to 138,135,494.06, 190,625,812.64 and 76,254,504.02
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Solution
The fourth proportional to 138,135,494.06, 190,625,812.64 and 76,254,504.02 is: 105,230,570.14
Step by Step Solution
- Step 1: Write the proportion equation
138,135,494.06 : 190,625,812.64 = 76,254,504.02 : x - Step 2: Convert to fraction form
138,135,494.06/190,625,812.64 = 76,254,504.02/x - Step 3: Cross multiply
138,135,494.06x = 190,625,812.64 × 76,254,504.02 - Step 4: Simplify right side
138,135,494.06x = 14,536,076,796,272,644 - Step 5: Solve for x
x = 14,536,076,796,272,644/138,135,494.06 - Step 6: Final answer
x = 105,230,570.14
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.