Finding the Fourth Proportional to 905,596,930.84, 1,249,716,252.12 and 509,121,687.72
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Solution
The fourth proportional to 905,596,930.84, 1,249,716,252.12 and 509,121,687.72 is: 702,583,705.60
Step by Step Solution
- Step 1: Write the proportion equation
905,596,930.84 : 1,249,716,252.12 = 509,121,687.72 : x - Step 2: Convert to fraction form
905,596,930.84/1,249,716,252.12 = 509,121,687.72/x - Step 3: Cross multiply
905,596,930.84x = 1,249,716,252.12 × 509,121,687.72 - Step 4: Simplify right side
905,596,930.84x = 636,257,647,450,447,360 - Step 5: Solve for x
x = 636,257,647,450,447,360/905,596,930.84 - Step 6: Final answer
x = 702,583,705.60
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1.5x scale
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.