Finding the Fourth Proportional to 2,116,965,818.81, 2,921,415,233.87 and 1,177,148,283.05
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Solution
The fourth proportional to 2,116,965,818.81, 2,921,415,233.87 and 1,177,148,283.05 is: 1,624,465,967.32
Step by Step Solution
- Step 1: Write the proportion equation
2,116,965,818.81 : 2,921,415,233.87 = 1,177,148,283.05 : x - Step 2: Convert to fraction form
2,116,965,818.81/2,921,415,233.87 = 1,177,148,283.05/x - Step 3: Cross multiply
2,116,965,818.81x = 2,921,415,233.87 × 1,177,148,283.05 - Step 4: Simplify right side
2,116,965,818.81x = 3,438,938,926,626,184,192 - Step 5: Solve for x
x = 3,438,938,926,626,184,192/2,116,965,818.81 - Step 6: Final answer
x = 1,624,465,967.32
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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.