Finding the Fourth Proportional to 1,119,630,814.89, 1,545,397,841.21 and 649,883,473.80
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Solution
The fourth proportional to 1,119,630,814.89, 1,545,397,841.21 and 649,883,473.80 is: 897,017,574.09
Step by Step Solution
- Step 1: Write the proportion equation
1,119,630,814.89 : 1,545,397,841.21 = 649,883,473.80 : x - Step 2: Convert to fraction form
1,119,630,814.89/1,545,397,841.21 = 649,883,473.80/x - Step 3: Cross multiply
1,119,630,814.89x = 1,545,397,841.21 × 649,883,473.80 - Step 4: Simplify right side
1,119,630,814.89x = 1,004,328,517,445,326,080 - Step 5: Solve for x
x = 1,004,328,517,445,326,080/1,119,630,814.89 - Step 6: Final answer
x = 897,017,574.09
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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.