Finding the Fourth Proportional to 1,539,411,738.68, 2,124,404,846.70 and 904,358,998.10
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Solution
The fourth proportional to 1,539,411,738.68, 2,124,404,846.70 and 904,358,998.10 is: 1,248,025,197.19
Step by Step Solution
- Step 1: Write the proportion equation
1,539,411,738.68 : 2,124,404,846.70 = 904,358,998.10 : x - Step 2: Convert to fraction form
1,539,411,738.68/2,124,404,846.70 = 904,358,998.10/x - Step 3: Cross multiply
1,539,411,738.68x = 2,124,404,846.70 × 904,358,998.10 - Step 4: Simplify right side
1,539,411,738.68x = 1,921,224,638,720,396,288 - Step 5: Solve for x
x = 1,921,224,638,720,396,288/1,539,411,738.68 - Step 6: Final answer
x = 1,248,025,197.19
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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.