Finding the Fourth Proportional to 39,929,468.29, 55,102,702.98 and 21,594,753.79
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Solution
The fourth proportional to 39,929,468.29, 55,102,702.98 and 21,594,753.79 is: 29,800,780.10
Step by Step Solution
- Step 1: Write the proportion equation
39,929,468.29 : 55,102,702.98 = 21,594,753.79 : x - Step 2: Convert to fraction form
39,929,468.29/55,102,702.98 = 21,594,753.79/x - Step 3: Cross multiply
39,929,468.29x = 55,102,702.98 × 21,594,753.79 - Step 4: Simplify right side
39,929,468.29x = 1,189,929,303,878,842.50 - Step 5: Solve for x
x = 1,189,929,303,878,842.50/39,929,468.29 - Step 6: Final answer
x = 29,800,780.10
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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.