Finding the Fourth Proportional to 5,153,643.10, 7,730,464.65 and 5,118,213.70
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Solution
The fourth proportional to 5,153,643.10, 7,730,464.65 and 5,118,213.70 is: 7,677,320.55
Step by Step Solution
- Step 1: Write the proportion equation
5,153,643.10 : 7,730,464.65 = 5,118,213.70 : x - Step 2: Convert to fraction form
5,153,643.10/7,730,464.65 = 5,118,213.70/x - Step 3: Cross multiply
5,153,643.10x = 7,730,464.65 × 5,118,213.70 - Step 4: Simplify right side
5,153,643.10x = 39,566,170,078,995.71 - Step 5: Solve for x
x = 39,566,170,078,995.71/5,153,643.10 - Step 6: Final answer
x = 7,677,320.55
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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.