Finding the Fourth Proportional to 12,564,933.70, 17,341,101.47 and 7,058,319.21
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Solution
The fourth proportional to 12,564,933.70, 17,341,101.47 and 7,058,319.21 is: 9,741,319.17
Step by Step Solution
- Step 1: Write the proportion equation
12,564,933.70 : 17,341,101.47 = 7,058,319.21 : x - Step 2: Convert to fraction form
12,564,933.70/17,341,101.47 = 7,058,319.21/x - Step 3: Cross multiply
12,564,933.70x = 17,341,101.47 × 7,058,319.21 - Step 4: Simplify right side
12,564,933.70x = 122,399,029,549,615.88 - Step 5: Solve for x
x = 122,399,029,549,615.88/12,564,933.70 - Step 6: Final answer
x = 9,741,319.17
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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.