Finding the Fourth Proportional to 239,580,345.88, 330,620,877.12 and 129,572,058.88
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Solution
The fourth proportional to 239,580,345.88, 330,620,877.12 and 129,572,058.88 is: 178,809,441.15
Step by Step Solution
- Step 1: Write the proportion equation
239,580,345.88 : 330,620,877.12 = 129,572,058.88 : x - Step 2: Convert to fraction form
239,580,345.88/330,620,877.12 = 129,572,058.88/x - Step 3: Cross multiply
239,580,345.88x = 330,620,877.12 × 129,572,058.88 - Step 4: Simplify right side
239,580,345.88x = 42,839,227,757,149,880 - Step 5: Solve for x
x = 42,839,227,757,149,880/239,580,345.88 - Step 6: Final answer
x = 178,809,441.15
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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.