Finding the Fourth Proportional to 493,867,324.80, 740,800,987.20 and 310,201,315.20
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Solution
The fourth proportional to 493,867,324.80, 740,800,987.20 and 310,201,315.20 is: 465,301,972.80
Step by Step Solution
- Step 1: Write the proportion equation
493,867,324.80 : 740,800,987.20 = 310,201,315.20 : x - Step 2: Convert to fraction form
493,867,324.80/740,800,987.20 = 310,201,315.20/x - Step 3: Cross multiply
493,867,324.80x = 740,800,987.20 × 310,201,315.20 - Step 4: Simplify right side
493,867,324.80x = 229,797,440,530,898,368 - Step 5: Solve for x
x = 229,797,440,530,898,368/493,867,324.80 - Step 6: Final answer
x = 465,301,972.80
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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.