Finding the Fourth Proportional to 255,912,726.14, 353,158,498.35 and 138,437,766.80
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Solution
The fourth proportional to 255,912,726.14, 353,158,498.35 and 138,437,766.80 is: 191,043,542.75
Step by Step Solution
- Step 1: Write the proportion equation
255,912,726.14 : 353,158,498.35 = 138,437,766.80 : x - Step 2: Convert to fraction form
255,912,726.14/353,158,498.35 = 138,437,766.80/x - Step 3: Cross multiply
255,912,726.14x = 353,158,498.35 × 138,437,766.80 - Step 4: Simplify right side
255,912,726.14x = 48,890,473,836,249,688 - Step 5: Solve for x
x = 48,890,473,836,249,688/255,912,726.14 - Step 6: Final answer
x = 191,043,542.75
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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.