Finding the Fourth Proportional to 74,889,965.70, 112,334,948.55 and 61,900,935.30
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Solution
The fourth proportional to 74,889,965.70, 112,334,948.55 and 61,900,935.30 is: 92,851,402.95
Step by Step Solution
- Step 1: Write the proportion equation
74,889,965.70 : 112,334,948.55 = 61,900,935.30 : x - Step 2: Convert to fraction form
74,889,965.70/112,334,948.55 = 61,900,935.30/x - Step 3: Cross multiply
74,889,965.70x = 112,334,948.55 × 61,900,935.30 - Step 4: Simplify right side
74,889,965.70x = 6,953,638,382,122,378 - Step 5: Solve for x
x = 6,953,638,382,122,378/74,889,965.70 - Step 6: Final answer
x = 92,851,402.95
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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.