Finding the Fourth Proportional to 1,992,730,500.08, 2,987,939,323.10 and 943,459,895.18
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Solution
The fourth proportional to 1,992,730,500.08, 2,987,939,323.10 and 943,459,895.18 is: 1,414,642,331.45
Step by Step Solution
- Step 1: Write the proportion equation
1,992,730,500.08 : 2,987,939,323.10 = 943,459,895.18 : x - Step 2: Convert to fraction form
1,992,730,500.08/2,987,939,323.10 = 943,459,895.18/x - Step 3: Cross multiply
1,992,730,500.08x = 2,987,939,323.10 × 943,459,895.18 - Step 4: Simplify right side
1,992,730,500.08x = 2,819,000,920,576,125,952 - Step 5: Solve for x
x = 2,819,000,920,576,125,952/1,992,730,500.08 - Step 6: Final answer
x = 1,414,642,331.45
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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.