Finding the Fourth Proportional to 1,034,935,447.40, 1,552,403,171.10 and 851,269,437.80
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Solution
The fourth proportional to 1,034,935,447.40, 1,552,403,171.10 and 851,269,437.80 is: 1,276,904,156.70
Step by Step Solution
- Step 1: Write the proportion equation
1,034,935,447.40 : 1,552,403,171.10 = 851,269,437.80 : x - Step 2: Convert to fraction form
1,034,935,447.40/1,552,403,171.10 = 851,269,437.80/x - Step 3: Cross multiply
1,034,935,447.40x = 1,552,403,171.10 × 851,269,437.80 - Step 4: Simplify right side
1,034,935,447.40x = 1,321,513,374,701,234,176 - Step 5: Solve for x
x = 1,321,513,374,701,234,176/1,034,935,447.40 - Step 6: Final answer
x = 1,276,904,156.70
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1.5x scale
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.