Finding the Fourth Proportional to 2,126,185,483.29, 3,189,187,363.28 and 727,294,842.66
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Solution
The fourth proportional to 2,126,185,483.29, 3,189,187,363.28 and 727,294,842.66 is: 1,090,911,183.35
Step by Step Solution
- Step 1: Write the proportion equation
2,126,185,483.29 : 3,189,187,363.28 = 727,294,842.66 : x - Step 2: Convert to fraction form
2,126,185,483.29/3,189,187,363.28 = 727,294,842.66/x - Step 3: Cross multiply
2,126,185,483.29x = 3,189,187,363.28 × 727,294,842.66 - Step 4: Simplify right side
2,126,185,483.29x = 2,319,479,521,589,987,840 - Step 5: Solve for x
x = 2,319,479,521,589,987,840/2,126,185,483.29 - Step 6: Final answer
x = 1,090,911,183.35
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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.