Finding the Fourth Proportional to 2,889,358,927.12, 3,987,335,726.76 and 1,569,259,483.12
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Solution
The fourth proportional to 2,889,358,927.12, 3,987,335,726.76 and 1,569,259,483.12 is: 2,165,589,170.27
Step by Step Solution
- Step 1: Write the proportion equation
2,889,358,927.12 : 3,987,335,726.76 = 1,569,259,483.12 : x - Step 2: Convert to fraction form
2,889,358,927.12/3,987,335,726.76 = 1,569,259,483.12/x - Step 3: Cross multiply
2,889,358,927.12x = 3,987,335,726.76 × 1,569,259,483.12 - Step 4: Simplify right side
2,889,358,927.12x = 6,257,164,401,601,306,624 - Step 5: Solve for x
x = 6,257,164,401,601,306,624/2,889,358,927.12 - Step 6: Final answer
x = 2,165,589,170.27
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.