Finding the Fourth Proportional to 2,151,992,347.79, 2,969,657,683.58 and 1,199,322,392.10
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Solution
The fourth proportional to 2,151,992,347.79, 2,969,657,683.58 and 1,199,322,392.10 is: 1,655,013,764.55
Step by Step Solution
- Step 1: Write the proportion equation
2,151,992,347.79 : 2,969,657,683.58 = 1,199,322,392.10 : x - Step 2: Convert to fraction form
2,151,992,347.79/2,969,657,683.58 = 1,199,322,392.10/x - Step 3: Cross multiply
2,151,992,347.79x = 2,969,657,683.58 × 1,199,322,392.10 - Step 4: Simplify right side
2,151,992,347.79x = 3,561,576,956,783,313,408 - Step 5: Solve for x
x = 3,561,576,956,783,313,408/2,151,992,347.79 - Step 6: Final answer
x = 1,655,013,764.55
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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.