Finding the Fourth Proportional to 272,697,695.20, 409,046,542.80 and 136,333,871.20
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Solution
The fourth proportional to 272,697,695.20, 409,046,542.80 and 136,333,871.20 is: 204,500,806.80
Step by Step Solution
- Step 1: Write the proportion equation
272,697,695.20 : 409,046,542.80 = 136,333,871.20 : x - Step 2: Convert to fraction form
272,697,695.20/409,046,542.80 = 136,333,871.20/x - Step 3: Cross multiply
272,697,695.20x = 409,046,542.80 × 136,333,871.20 - Step 4: Simplify right side
272,697,695.20x = 55,766,898,680,900,488 - Step 5: Solve for x
x = 55,766,898,680,900,488/272,697,695.20 - Step 6: Final answer
x = 204,500,806.80
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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.