Finding the Fourth Proportional to 117,327,900.40, 176,159,812.20 and 66,309,564.40
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Solution
The fourth proportional to 117,327,900.40, 176,159,812.20 and 66,309,564.40 is: 99,559,272.53
Step by Step Solution
- Step 1: Write the proportion equation
117,327,900.40 : 176,159,812.20 = 66,309,564.40 : x - Step 2: Convert to fraction form
117,327,900.40/176,159,812.20 = 66,309,564.40/x - Step 3: Cross multiply
117,327,900.40x = 176,159,812.20 × 66,309,564.40 - Step 4: Simplify right side
117,327,900.40x = 11,681,080,411,767,804 - Step 5: Solve for x
x = 11,681,080,411,767,804/117,327,900.40 - Step 6: Final answer
x = 99,559,272.53
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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.