Finding the Fourth Proportional to 1,487,655,972.83, 2,231,483,627.10 and 542,324,930.84
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Solution
The fourth proportional to 1,487,655,972.83, 2,231,483,627.10 and 542,324,930.84 is: 813,487,275.18
Step by Step Solution
- Step 1: Write the proportion equation
1,487,655,972.83 : 2,231,483,627.10 = 542,324,930.84 : x - Step 2: Convert to fraction form
1,487,655,972.83/2,231,483,627.10 = 542,324,930.84/x - Step 3: Cross multiply
1,487,655,972.83x = 2,231,483,627.10 × 542,324,930.84 - Step 4: Simplify right side
1,487,655,972.83x = 1,210,189,203,737,600,000 - Step 5: Solve for x
x = 1,210,189,203,737,600,000/1,487,655,972.83 - Step 6: Final answer
x = 813,487,275.18
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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.