Finding the Fourth Proportional to 136,142,378.66, 187,877,681.62 and 74,262,992.42
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Solution
The fourth proportional to 136,142,378.66, 187,877,681.62 and 74,262,992.42 is: 102,483,583.61
Step by Step Solution
- Step 1: Write the proportion equation
136,142,378.66 : 187,877,681.62 = 74,262,992.42 : x - Step 2: Convert to fraction form
136,142,378.66/187,877,681.62 = 74,262,992.42/x - Step 3: Cross multiply
136,142,378.66x = 187,877,681.62 × 74,262,992.42 - Step 4: Simplify right side
136,142,378.66x = 13,952,358,846,033,234 - Step 5: Solve for x
x = 13,952,358,846,033,234/136,142,378.66 - Step 6: Final answer
x = 102,483,583.61
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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.