Finding the Fourth Proportional to 7,130,195.19, 9,840,927.12 and 4,231,184.55
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Solution
The fourth proportional to 7,130,195.19, 9,840,927.12 and 4,231,184.55 is: 5,839,781.05
Step by Step Solution
- Step 1: Write the proportion equation
7,130,195.19 : 9,840,927.12 = 4,231,184.55 : x - Step 2: Convert to fraction form
7,130,195.19/9,840,927.12 = 4,231,184.55/x - Step 3: Cross multiply
7,130,195.19x = 9,840,927.12 × 4,231,184.55 - Step 4: Simplify right side
7,130,195.19x = 41,638,778,787,819.99 - Step 5: Solve for x
x = 41,638,778,787,819.99/7,130,195.19 - Step 6: Final answer
x = 5,839,781.05
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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.