Finding the Fourth Proportional to 1,186,069,178.88, 1,779,907,531.50 and 486,687,754.29
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Solution
The fourth proportional to 1,186,069,178.88, 1,779,907,531.50 and 486,687,754.29 is: 730,361,444.99
Step by Step Solution
- Step 1: Write the proportion equation
1,186,069,178.88 : 1,779,907,531.50 = 486,687,754.29 : x - Step 2: Convert to fraction form
1,186,069,178.88/1,779,907,531.50 = 486,687,754.29/x - Step 3: Cross multiply
1,186,069,178.88x = 1,779,907,531.50 × 486,687,754.29 - Step 4: Simplify right side
1,186,069,178.88x = 866,259,199,349,592,448 - Step 5: Solve for x
x = 866,259,199,349,592,448/1,186,069,178.88 - Step 6: Final answer
x = 730,361,444.99
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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.