Finding the Fourth Proportional to 2,378,414,637.70, 3,567,621,956.55 and 655,128,621.70
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Solution
The fourth proportional to 2,378,414,637.70, 3,567,621,956.55 and 655,128,621.70 is: 982,692,932.55
Step by Step Solution
- Step 1: Write the proportion equation
2,378,414,637.70 : 3,567,621,956.55 = 655,128,621.70 : x - Step 2: Convert to fraction form
2,378,414,637.70/3,567,621,956.55 = 655,128,621.70/x - Step 3: Cross multiply
2,378,414,637.70x = 3,567,621,956.55 × 655,128,621.70 - Step 4: Simplify right side
2,378,414,637.70x = 2,337,251,255,141,259,264 - Step 5: Solve for x
x = 2,337,251,255,141,259,264/2,378,414,637.70 - Step 6: Final answer
x = 982,692,932.55
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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.