Finding the Fourth Proportional to 28,708,032.02, 39,616,201.17 and 16,319,478.74
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Solution
The fourth proportional to 28,708,032.02, 39,616,201.17 and 16,319,478.74 is: 22,520,378.70
Step by Step Solution
- Step 1: Write the proportion equation
28,708,032.02 : 39,616,201.17 = 16,319,478.74 : x - Step 2: Convert to fraction form
28,708,032.02/39,616,201.17 = 16,319,478.74/x - Step 3: Cross multiply
28,708,032.02x = 39,616,201.17 × 16,319,478.74 - Step 4: Simplify right side
28,708,032.02x = 646,515,752,753,378.12 - Step 5: Solve for x
x = 646,515,752,753,378.12/28,708,032.02 - Step 6: Final answer
x = 22,520,378.70
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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.