Finding the Fourth Proportional to 28,572,913.08, 39,433,891.12 and 16,017,358.88
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Solution
The fourth proportional to 28,572,913.08, 39,433,891.12 and 16,017,358.88 is: 22,105,788.95
Step by Step Solution
- Step 1: Write the proportion equation
28,572,913.08 : 39,433,891.12 = 16,017,358.88 : x - Step 2: Convert to fraction form
28,572,913.08/39,433,891.12 = 16,017,358.88/x - Step 3: Cross multiply
28,572,913.08x = 39,433,891.12 × 16,017,358.88 - Step 4: Simplify right side
28,572,913.08x = 631,626,786,103,885.12 - Step 5: Solve for x
x = 631,626,786,103,885.12/28,572,913.08 - Step 6: Final answer
x = 22,105,788.95
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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.