Finding the Fourth Proportional to 725,128,756.29, 1,086,918,625.35 and 413,565,587.01
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Solution
The fourth proportional to 725,128,756.29, 1,086,918,625.35 and 413,565,587.01 is: 619,906,651.65
Step by Step Solution
- Step 1: Write the proportion equation
725,128,756.29 : 1,086,918,625.35 = 413,565,587.01 : x - Step 2: Convert to fraction form
725,128,756.29/1,086,918,625.35 = 413,565,587.01/x - Step 3: Cross multiply
725,128,756.29x = 1,086,918,625.35 × 413,565,587.01 - Step 4: Simplify right side
725,128,756.29x = 449,512,139,324,974,976 - Step 5: Solve for x
x = 449,512,139,324,974,976/725,128,756.29 - Step 6: Final answer
x = 619,906,651.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.