Finding the Fourth Proportional to 8,349,415.20, 12,514,791.60 and 4,756,903.20
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Solution
The fourth proportional to 8,349,415.20, 12,514,791.60 and 4,756,903.20 is: 7,130,038.55
Step by Step Solution
- Step 1: Write the proportion equation
8,349,415.20 : 12,514,791.60 = 4,756,903.20 : x - Step 2: Convert to fraction form
8,349,415.20/12,514,791.60 = 4,756,903.20/x - Step 3: Cross multiply
8,349,415.20x = 12,514,791.60 × 4,756,903.20 - Step 4: Simplify right side
8,349,415.20x = 59,531,652,209,373.12 - Step 5: Solve for x
x = 59,531,652,209,373.12/8,349,415.20 - Step 6: Final answer
x = 7,130,038.55
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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.