Finding the Fourth Proportional to 928,723,254.30, 1,393,084,859.64 and 338,557,743.18
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Solution
The fourth proportional to 928,723,254.30, 1,393,084,859.64 and 338,557,743.18 is: 507,836,606.82
Step by Step Solution
- Step 1: Write the proportion equation
928,723,254.30 : 1,393,084,859.64 = 338,557,743.18 : x - Step 2: Convert to fraction form
928,723,254.30/1,393,084,859.64 = 338,557,743.18/x - Step 3: Cross multiply
928,723,254.30x = 1,393,084,859.64 × 338,557,743.18 - Step 4: Simplify right side
928,723,254.30x = 471,639,666,137,945,536 - Step 5: Solve for x
x = 471,639,666,137,945,536/928,723,254.30 - Step 6: Final answer
x = 507,836,606.82
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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.