Finding the Fourth Proportional to 136,142,374.41, 187,877,675.75 and 74,262,988.17
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Solution
The fourth proportional to 136,142,374.41, 187,877,675.75 and 74,262,988.17 is: 102,483,577.74
Step by Step Solution
- Step 1: Write the proportion equation
136,142,374.41 : 187,877,675.75 = 74,262,988.17 : x - Step 2: Convert to fraction form
136,142,374.41/187,877,675.75 = 74,262,988.17/x - Step 3: Cross multiply
136,142,374.41x = 187,877,675.75 × 74,262,988.17 - Step 4: Simplify right side
136,142,374.41x = 13,952,357,611,258,032 - Step 5: Solve for x
x = 13,952,357,611,258,032/136,142,374.41 - Step 6: Final answer
x = 102,483,577.74
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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.