Finding the Fourth Proportional to 727,450,848.30, 1,091,176,272.45 and 420,585,005.10
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Solution
The fourth proportional to 727,450,848.30, 1,091,176,272.45 and 420,585,005.10 is: 630,877,507.65
Step by Step Solution
- Step 1: Write the proportion equation
727,450,848.30 : 1,091,176,272.45 = 420,585,005.10 : x - Step 2: Convert to fraction form
727,450,848.30/1,091,176,272.45 = 420,585,005.10/x - Step 3: Cross multiply
727,450,848.30x = 1,091,176,272.45 × 420,585,005.10 - Step 4: Simplify right side
727,450,848.30x = 458,932,378,113,382,272 - Step 5: Solve for x
x = 458,932,378,113,382,272/727,450,848.30 - Step 6: Final answer
x = 630,877,507.65
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.