Finding the Fourth Proportional to 886,497,921.12, 1,223,367,394.56 and 484,613,416.40
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Solution
The fourth proportional to 886,497,921.12, 1,223,367,394.56 and 484,613,416.40 is: 668,766,658.63
Step by Step Solution
- Step 1: Write the proportion equation
886,497,921.12 : 1,223,367,394.56 = 484,613,416.40 : x - Step 2: Convert to fraction form
886,497,921.12/1,223,367,394.56 = 484,613,416.40/x - Step 3: Cross multiply
886,497,921.12x = 1,223,367,394.56 × 484,613,416.40 - Step 4: Simplify right side
886,497,921.12x = 592,860,252,590,088,320 - Step 5: Solve for x
x = 592,860,252,590,088,320/886,497,921.12 - Step 6: Final answer
x = 668,766,658.63
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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.