Finding the Fourth Proportional to 1,487,676,387.21, 2,231,837,431.26 and 452,510,363.95
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Solution
The fourth proportional to 1,487,676,387.21, 2,231,837,431.26 and 452,510,363.95 is: 678,863,748.18
Step by Step Solution
- Step 1: Write the proportion equation
1,487,676,387.21 : 2,231,837,431.26 = 452,510,363.95 : x - Step 2: Convert to fraction form
1,487,676,387.21/2,231,837,431.26 = 452,510,363.95/x - Step 3: Cross multiply
1,487,676,387.21x = 2,231,837,431.26 × 452,510,363.95 - Step 4: Simplify right side
1,487,676,387.21x = 1,009,929,568,294,433,152 - Step 5: Solve for x
x = 1,009,929,568,294,433,152/1,487,676,387.21 - Step 6: Final answer
x = 678,863,748.18
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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.