Finding the Fourth Proportional to 137,240,606.77, 189,395,328.14 and 74,519,348.32
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Solution
The fourth proportional to 137,240,606.77, 189,395,328.14 and 74,519,348.32 is: 102,838,487.53
Step by Step Solution
- Step 1: Write the proportion equation
137,240,606.77 : 189,395,328.14 = 74,519,348.32 : x - Step 2: Convert to fraction form
137,240,606.77/189,395,328.14 = 74,519,348.32/x - Step 3: Cross multiply
137,240,606.77x = 189,395,328.14 × 74,519,348.32 - Step 4: Simplify right side
137,240,606.77x = 14,113,616,427,084,680 - Step 5: Solve for x
x = 14,113,616,427,084,680/137,240,606.77 - Step 6: Final answer
x = 102,838,487.53
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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.