Finding the Fourth Proportional to 1,440,213,126.99, 1,987,813,849.02 and 875,578,030.98
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Solution
The fourth proportional to 1,440,213,126.99, 1,987,813,849.02 and 875,578,030.98 is: 1,208,492,065.00
Step by Step Solution
- Step 1: Write the proportion equation
1,440,213,126.99 : 1,987,813,849.02 = 875,578,030.98 : x - Step 2: Convert to fraction form
1,440,213,126.99/1,987,813,849.02 = 875,578,030.98/x - Step 3: Cross multiply
1,440,213,126.99x = 1,987,813,849.02 × 875,578,030.98 - Step 4: Simplify right side
1,440,213,126.99x = 1,740,486,135,879,706,624 - Step 5: Solve for x
x = 1,740,486,135,879,706,624/1,440,213,126.99 - Step 6: Final answer
x = 1,208,492,065.00
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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.