Finding the Fourth Proportional to 521,619,497.80, 782,429,246.70 and 249,521,705.80
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Solution
The fourth proportional to 521,619,497.80, 782,429,246.70 and 249,521,705.80 is: 374,282,558.70
Step by Step Solution
- Step 1: Write the proportion equation
521,619,497.80 : 782,429,246.70 = 249,521,705.80 : x - Step 2: Convert to fraction form
521,619,497.80/782,429,246.70 = 249,521,705.80/x - Step 3: Cross multiply
521,619,497.80x = 782,429,246.70 × 249,521,705.80 - Step 4: Simplify right side
521,619,497.80x = 195,233,080,304,393,056 - Step 5: Solve for x
x = 195,233,080,304,393,056/521,619,497.80 - Step 6: Final answer
x = 374,282,558.70
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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.