Finding the Fourth Proportional to 1,414,497,659.98, 1,951,918,818.39 and 779,382,610.12
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Solution
The fourth proportional to 1,414,497,659.98, 1,951,918,818.39 and 779,382,610.12 is: 1,075,499,540.55
Step by Step Solution
- Step 1: Write the proportion equation
1,414,497,659.98 : 1,951,918,818.39 = 779,382,610.12 : x - Step 2: Convert to fraction form
1,414,497,659.98/1,951,918,818.39 = 779,382,610.12/x - Step 3: Cross multiply
1,414,497,659.98x = 1,951,918,818.39 × 779,382,610.12 - Step 4: Simplify right side
1,414,497,659.98x = 1,521,291,583,415,321,856 - Step 5: Solve for x
x = 1,521,291,583,415,321,856/1,414,497,659.98 - Step 6: Final answer
x = 1,075,499,540.55
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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.