Finding the Fourth Proportional to 80,928,547.80, 121,336,056.90 and 29,803,939.80
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Solution
The fourth proportional to 80,928,547.80, 121,336,056.90 and 29,803,939.80 is: 44,685,004.66
Step by Step Solution
- Step 1: Write the proportion equation
80,928,547.80 : 121,336,056.90 = 29,803,939.80 : x - Step 2: Convert to fraction form
80,928,547.80/121,336,056.90 = 29,803,939.80/x - Step 3: Cross multiply
80,928,547.80x = 121,336,056.90 × 29,803,939.80 - Step 4: Simplify right side
80,928,547.80x = 3,616,292,535,416,975 - Step 5: Solve for x
x = 3,616,292,535,416,975/80,928,547.80 - Step 6: Final answer
x = 44,685,004.66
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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.