Finding the Fourth Proportional to 115,996,956.84, 160,075,605.51 and 66,453,369.75
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Solution
The fourth proportional to 115,996,956.84, 160,075,605.51 and 66,453,369.75 is: 91,705,538.58
Step by Step Solution
- Step 1: Write the proportion equation
115,996,956.84 : 160,075,605.51 = 66,453,369.75 : x - Step 2: Convert to fraction form
115,996,956.84/160,075,605.51 = 66,453,369.75/x - Step 3: Cross multiply
115,996,956.84x = 160,075,605.51 × 66,453,369.75 - Step 4: Simplify right side
115,996,956.84x = 10,637,563,400,911,166 - Step 5: Solve for x
x = 10,637,563,400,911,166/115,996,956.84 - Step 6: Final answer
x = 91,705,538.58
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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.