Finding the Fourth Proportional to 154,864,538.19, 213,758,192.57 and 101,226,991.05
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Solution
The fourth proportional to 154,864,538.19, 213,758,192.57 and 101,226,991.05 is: 139,722,746.72
Step by Step Solution
- Step 1: Write the proportion equation
154,864,538.19 : 213,758,192.57 = 101,226,991.05 : x - Step 2: Convert to fraction form
154,864,538.19/213,758,192.57 = 101,226,991.05/x - Step 3: Cross multiply
154,864,538.19x = 213,758,192.57 × 101,226,991.05 - Step 4: Simplify right side
154,864,538.19x = 21,638,098,645,641,432 - Step 5: Solve for x
x = 21,638,098,645,641,432/154,864,538.19 - Step 6: Final answer
x = 139,722,746.72
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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.