Finding the Fourth Proportional to 6,897,869.55, 9,518,604.55 and 4,142,919.99
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Solution
The fourth proportional to 6,897,869.55, 9,518,604.55 and 4,142,919.99 is: 5,716,956.05
Step by Step Solution
- Step 1: Write the proportion equation
6,897,869.55 : 9,518,604.55 = 4,142,919.99 : x - Step 2: Convert to fraction form
6,897,869.55/9,518,604.55 = 4,142,919.99/x - Step 3: Cross multiply
6,897,869.55x = 9,518,604.55 × 4,142,919.99 - Step 4: Simplify right side
6,897,869.55x = 39,434,817,046,385.36 - Step 5: Solve for x
x = 39,434,817,046,385.36/6,897,869.55 - Step 6: Final answer
x = 5,716,956.05
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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.