Finding the Fourth Proportional to 153,630,440.61, 212,029,374.98 and 100,751,618.24
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Solution
The fourth proportional to 153,630,440.61, 212,029,374.98 and 100,751,618.24 is: 139,049,934.11
Step by Step Solution
- Step 1: Write the proportion equation
153,630,440.61 : 212,029,374.98 = 100,751,618.24 : x - Step 2: Convert to fraction form
153,630,440.61/212,029,374.98 = 100,751,618.24/x - Step 3: Cross multiply
153,630,440.61x = 212,029,374.98 × 100,751,618.24 - Step 4: Simplify right side
153,630,440.61x = 21,362,302,643,677,084 - Step 5: Solve for x
x = 21,362,302,643,677,084/153,630,440.61 - Step 6: Final answer
x = 139,049,934.11
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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.