Finding the Fourth Proportional to 1,027,475,277.30, 1,417,915,892.84 and 557,576,598.26
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Solution
The fourth proportional to 1,027,475,277.30, 1,417,915,892.84 and 557,576,598.26 is: 769,455,711.12
Step by Step Solution
- Step 1: Write the proportion equation
1,027,475,277.30 : 1,417,915,892.84 = 557,576,598.26 : x - Step 2: Convert to fraction form
1,027,475,277.30/1,417,915,892.84 = 557,576,598.26/x - Step 3: Cross multiply
1,027,475,277.30x = 1,417,915,892.84 × 557,576,598.26 - Step 4: Simplify right side
1,027,475,277.30x = 790,596,720,149,274,880 - Step 5: Solve for x
x = 790,596,720,149,274,880/1,027,475,277.30 - Step 6: Final answer
x = 769,455,711.12
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Double scale
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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.