Finding the Fourth Proportional to 8,717,509.79, 12,033,452.97 and 7,488,885.99
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Solution
The fourth proportional to 8,717,509.79, 12,033,452.97 and 7,488,885.99 is: 10,337,488.52
Step by Step Solution
- Step 1: Write the proportion equation
8,717,509.79 : 12,033,452.97 = 7,488,885.99 : x - Step 2: Convert to fraction form
8,717,509.79/12,033,452.97 = 7,488,885.99/x - Step 3: Cross multiply
8,717,509.79x = 12,033,452.97 × 7,488,885.99 - Step 4: Simplify right side
8,717,509.79x = 90,117,157,358,356.89 - Step 5: Solve for x
x = 90,117,157,358,356.89/8,717,509.79 - Step 6: Final answer
x = 10,337,488.52
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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.