Finding the Fourth Proportional to 149,287,645.20, 223,931,467.80 and 84,717,563.70
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Solution
The fourth proportional to 149,287,645.20, 223,931,467.80 and 84,717,563.70 is: 127,076,345.55
Step by Step Solution
- Step 1: Write the proportion equation
149,287,645.20 : 223,931,467.80 = 84,717,563.70 : x - Step 2: Convert to fraction form
149,287,645.20/223,931,467.80 = 84,717,563.70/x - Step 3: Cross multiply
149,287,645.20x = 223,931,467.80 × 84,717,563.70 - Step 4: Simplify right side
149,287,645.20x = 18,970,928,387,781,000 - Step 5: Solve for x
x = 18,970,928,387,781,000/149,287,645.20 - Step 6: Final answer
x = 127,076,345.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.