Finding the Fourth Proportional to 2,645,891,552.51, 3,968,837,327.40 and 987,928,315.98
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Solution
The fourth proportional to 2,645,891,552.51, 3,968,837,327.40 and 987,928,315.98 is: 1,481,892,473.45
Step by Step Solution
- Step 1: Write the proportion equation
2,645,891,552.51 : 3,968,837,327.40 = 987,928,315.98 : x - Step 2: Convert to fraction form
2,645,891,552.51/3,968,837,327.40 = 987,928,315.98/x - Step 3: Cross multiply
2,645,891,552.51x = 3,968,837,327.40 × 987,928,315.98 - Step 4: Simplify right side
2,645,891,552.51x = 3,920,926,777,238,169,088 - Step 5: Solve for x
x = 3,920,926,777,238,169,088/2,645,891,552.51 - Step 6: Final answer
x = 1,481,892,473.45
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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.