Finding the Fourth Proportional to 65,207,976.30, 97,811,964.45 and 39,698,808.30
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Solution
The fourth proportional to 65,207,976.30, 97,811,964.45 and 39,698,808.30 is: 59,548,212.45
Step by Step Solution
- Step 1: Write the proportion equation
65,207,976.30 : 97,811,964.45 = 39,698,808.30 : x - Step 2: Convert to fraction form
65,207,976.30/97,811,964.45 = 39,698,808.30/x - Step 3: Cross multiply
65,207,976.30x = 97,811,964.45 × 39,698,808.30 - Step 4: Simplify right side
65,207,976.30x = 3,883,018,426,146,965 - Step 5: Solve for x
x = 3,883,018,426,146,965/65,207,976.30 - Step 6: Final answer
x = 59,548,212.45
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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.