Finding the Fourth Proportional to 21,548,385.90, 29,737,400.74 and 11,759,460.65
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Solution
The fourth proportional to 21,548,385.90, 29,737,400.74 and 11,759,460.65 is: 16,228,398.51
Step by Step Solution
- Step 1: Write the proportion equation
21,548,385.90 : 29,737,400.74 = 11,759,460.65 : x - Step 2: Convert to fraction form
21,548,385.90/29,737,400.74 = 11,759,460.65/x - Step 3: Cross multiply
21,548,385.90x = 29,737,400.74 × 11,759,460.65 - Step 4: Simplify right side
21,548,385.90x = 349,695,793,657,225.25 - Step 5: Solve for x
x = 349,695,793,657,225.25/21,548,385.90 - Step 6: Final answer
x = 16,228,398.51
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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.