Finding the Fourth Proportional to 1,319,150,282.13, 1,975,710,742.11 and 629,541,811.71
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Solution
The fourth proportional to 1,319,150,282.13, 1,975,710,742.11 and 629,541,811.71 is: 942,874,012.80
Step by Step Solution
- Step 1: Write the proportion equation
1,319,150,282.13 : 1,975,710,742.11 = 629,541,811.71 : x - Step 2: Convert to fraction form
1,319,150,282.13/1,975,710,742.11 = 629,541,811.71/x - Step 3: Cross multiply
1,319,150,282.13x = 1,975,710,742.11 × 629,541,811.71 - Step 4: Simplify right side
1,319,150,282.13x = 1,243,792,520,002,838,016 - Step 5: Solve for x
x = 1,243,792,520,002,838,016/1,319,150,282.13 - Step 6: Final answer
x = 942,874,012.80
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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.