Finding the Fourth Proportional to 73,387,029.80, 110,080,107.30 and 18,799,509.80
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Solution
The fourth proportional to 73,387,029.80, 110,080,107.30 and 18,799,509.80 is: 28,199,152.65
Step by Step Solution
- Step 1: Write the proportion equation
73,387,029.80 : 110,080,107.30 = 18,799,509.80 : x - Step 2: Convert to fraction form
73,387,029.80/110,080,107.30 = 18,799,509.80/x - Step 3: Cross multiply
73,387,029.80x = 110,080,107.30 × 18,799,509.80 - Step 4: Simplify right side
73,387,029.80x = 2,069,452,055,971,401.50 - Step 5: Solve for x
x = 2,069,452,055,971,401.50/73,387,029.80 - Step 6: Final answer
x = 28,199,152.65
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1.5x scale
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.