Finding the Fourth Proportional to 1,027,475,276.05, 1,417,915,891.12 and 557,576,597.01
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Solution
The fourth proportional to 1,027,475,276.05, 1,417,915,891.12 and 557,576,597.01 is: 769,455,709.39
Step by Step Solution
- Step 1: Write the proportion equation
1,027,475,276.05 : 1,417,915,891.12 = 557,576,597.01 : x - Step 2: Convert to fraction form
1,027,475,276.05/1,417,915,891.12 = 557,576,597.01/x - Step 3: Cross multiply
1,027,475,276.05x = 1,417,915,891.12 × 557,576,597.01 - Step 4: Simplify right side
1,027,475,276.05x = 790,596,717,417,091,200 - Step 5: Solve for x
x = 790,596,717,417,091,200/1,027,475,276.05 - Step 6: Final answer
x = 769,455,709.39
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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.