Finding the Fourth Proportional to 1,008,962,405.10, 1,512,717,257.97 and 619,981,567.74
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Solution
The fourth proportional to 1,008,962,405.10, 1,512,717,257.97 and 619,981,567.74 is: 929,526,028.33
Step by Step Solution
- Step 1: Write the proportion equation
1,008,962,405.10 : 1,512,717,257.97 = 619,981,567.74 : x - Step 2: Convert to fraction form
1,008,962,405.10/1,512,717,257.97 = 619,981,567.74/x - Step 3: Cross multiply
1,008,962,405.10x = 1,512,717,257.97 × 619,981,567.74 - Step 4: Simplify right side
1,008,962,405.10x = 937,856,817,143,594,624 - Step 5: Solve for x
x = 937,856,817,143,594,624/1,008,962,405.10 - Step 6: Final answer
x = 929,526,028.33
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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.