Finding the Fourth Proportional to 319,030,306.77, 440,293,208.77 and 193,572,656.23
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Solution
The fourth proportional to 319,030,306.77, 440,293,208.77 and 193,572,656.23 is: 267,149,308.81
Step by Step Solution
- Step 1: Write the proportion equation
319,030,306.77 : 440,293,208.77 = 193,572,656.23 : x - Step 2: Convert to fraction form
319,030,306.77/440,293,208.77 = 193,572,656.23/x - Step 3: Cross multiply
319,030,306.77x = 440,293,208.77 × 193,572,656.23 - Step 4: Simplify right side
319,030,306.77x = 85,228,725,941,855,600 - Step 5: Solve for x
x = 85,228,725,941,855,600/319,030,306.77 - Step 6: Final answer
x = 267,149,308.81
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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.