Finding the Fourth Proportional to 1,425,952,014.99, 2,137,418,396.25 and 479,649,237.74
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Solution
The fourth proportional to 1,425,952,014.99, 2,137,418,396.25 and 479,649,237.74 is: 718,966,061.77
Step by Step Solution
- Step 1: Write the proportion equation
1,425,952,014.99 : 2,137,418,396.25 = 479,649,237.74 : x - Step 2: Convert to fraction form
1,425,952,014.99/2,137,418,396.25 = 479,649,237.74/x - Step 3: Cross multiply
1,425,952,014.99x = 2,137,418,396.25 × 479,649,237.74 - Step 4: Simplify right side
1,425,952,014.99x = 1,025,211,104,492,765,824 - Step 5: Solve for x
x = 1,025,211,104,492,765,824/1,425,952,014.99 - Step 6: Final answer
x = 718,966,061.77
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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.