Finding the Fourth Proportional to 5,651,931.60, 8,478,415.80 and 1,865,422.80
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Solution
The fourth proportional to 5,651,931.60, 8,478,415.80 and 1,865,422.80 is: 2,798,305.30
Step by Step Solution
- Step 1: Write the proportion equation
5,651,931.60 : 8,478,415.80 = 1,865,422.80 : x - Step 2: Convert to fraction form
5,651,931.60/8,478,415.80 = 1,865,422.80/x - Step 3: Cross multiply
5,651,931.60x = 8,478,415.80 × 1,865,422.80 - Step 4: Simplify right side
5,651,931.60x = 15,815,830,141,200.24 - Step 5: Solve for x
x = 15,815,830,141,200.24/5,651,931.60 - Step 6: Final answer
x = 2,798,305.30
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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.