Finding the Fourth Proportional to 74,812,075.70, 112,162,126.35 and 40,771,858.10
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Solution
The fourth proportional to 74,812,075.70, 112,162,126.35 and 40,771,858.10 is: 61,127,274.67
Step by Step Solution
- Step 1: Write the proportion equation
74,812,075.70 : 112,162,126.35 = 40,771,858.10 : x - Step 2: Convert to fraction form
74,812,075.70/112,162,126.35 = 40,771,858.10/x - Step 3: Cross multiply
74,812,075.70x = 112,162,126.35 × 40,771,858.10 - Step 4: Simplify right side
74,812,075.70x = 4,573,058,299,736,471 - Step 5: Solve for x
x = 4,573,058,299,736,471/74,812,075.70 - Step 6: Final answer
x = 61,127,274.67
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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.