Finding the Fourth Proportional to 2,115,732,804.68, 2,919,537,722.20 and 1,245,558,909.23
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Solution
The fourth proportional to 2,115,732,804.68, 2,919,537,722.20 and 1,245,558,909.23 is: 1,718,769,124.66
Step by Step Solution
- Step 1: Write the proportion equation
2,115,732,804.68 : 2,919,537,722.20 = 1,245,558,909.23 : x - Step 2: Convert to fraction form
2,115,732,804.68/2,919,537,722.20 = 1,245,558,909.23/x - Step 3: Cross multiply
2,115,732,804.68x = 2,919,537,722.20 × 1,245,558,909.23 - Step 4: Simplify right side
2,115,732,804.68x = 3,636,456,220,713,043,456 - Step 5: Solve for x
x = 3,636,456,220,713,043,456/2,115,732,804.68 - Step 6: Final answer
x = 1,718,769,124.66
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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.