Finding the Fourth Proportional to 2,551,126,507.68, 3,520,554,552 and 1,377,704,779.68
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Solution
The fourth proportional to 2,551,126,507.68, 3,520,554,552 and 1,377,704,779.68 is: 1,901,232,580.51
Step by Step Solution
- Step 1: Write the proportion equation
2,551,126,507.68 : 3,520,554,552 = 1,377,704,779.68 : x - Step 2: Convert to fraction form
2,551,126,507.68/3,520,554,552 = 1,377,704,779.68/x - Step 3: Cross multiply
2,551,126,507.68x = 3,520,554,552 × 1,377,704,779.68 - Step 4: Simplify right side
2,551,126,507.68x = 4,850,284,833,414,581,248 - Step 5: Solve for x
x = 4,850,284,833,414,581,248/2,551,126,507.68 - Step 6: Final answer
x = 1,901,232,580.51
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1.5x scale
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.