Finding the Fourth Proportional to 108,660,979.18, 149,938,541.22 and 73,455,384.75
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Solution
The fourth proportional to 108,660,979.18, 149,938,541.22 and 73,455,384.75 is: 101,359,230.49
Step by Step Solution
- Step 1: Write the proportion equation
108,660,979.18 : 149,938,541.22 = 73,455,384.75 : x - Step 2: Convert to fraction form
108,660,979.18/149,938,541.22 = 73,455,384.75/x - Step 3: Cross multiply
108,660,979.18x = 149,938,541.22 × 73,455,384.75 - Step 4: Simplify right side
108,660,979.18x = 11,013,793,234,168,834 - Step 5: Solve for x
x = 11,013,793,234,168,834/108,660,979.18 - Step 6: Final answer
x = 101,359,230.49
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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.