Finding the Fourth Proportional to 862,871,645.18, 1,190,768,125.71 and 466,393,630.07
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Solution
The fourth proportional to 862,871,645.18, 1,190,768,125.71 and 466,393,630.07 is: 643,626,050.09
Step by Step Solution
- Step 1: Write the proportion equation
862,871,645.18 : 1,190,768,125.71 = 466,393,630.07 : x - Step 2: Convert to fraction form
862,871,645.18/1,190,768,125.71 = 466,393,630.07/x - Step 3: Cross multiply
862,871,645.18x = 1,190,768,125.71 × 466,393,630.07 - Step 4: Simplify right side
862,871,645.18x = 555,366,668,715,583,168 - Step 5: Solve for x
x = 555,366,668,715,583,168/862,871,645.18 - Step 6: Final answer
x = 643,626,050.09
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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.