Finding the Fourth Proportional to 16,000,387.74, 22,080,593.61 and 8,658,220.91
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Solution
The fourth proportional to 16,000,387.74, 22,080,593.61 and 8,658,220.91 is: 11,948,376.52
Step by Step Solution
- Step 1: Write the proportion equation
16,000,387.74 : 22,080,593.61 = 8,658,220.91 : x - Step 2: Convert to fraction form
16,000,387.74/22,080,593.61 = 8,658,220.91/x - Step 3: Cross multiply
16,000,387.74x = 22,080,593.61 × 8,658,220.91 - Step 4: Simplify right side
16,000,387.74x = 191,178,657,188,911.41 - Step 5: Solve for x
x = 191,178,657,188,911.41/16,000,387.74 - Step 6: Final answer
x = 11,948,376.52
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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.