Finding the Fourth Proportional to 1,565,839,423.08, 2,158,852,481.64 and 1,282,538,198.70
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Solution
The fourth proportional to 1,565,839,423.08, 2,158,852,481.64 and 1,282,538,198.70 is: 1,768,259,715.68
Step by Step Solution
- Step 1: Write the proportion equation
1,565,839,423.08 : 2,158,852,481.64 = 1,282,538,198.70 : x - Step 2: Convert to fraction form
1,565,839,423.08/2,158,852,481.64 = 1,282,538,198.70/x - Step 3: Cross multiply
1,565,839,423.08x = 2,158,852,481.64 × 1,282,538,198.70 - Step 4: Simplify right side
1,565,839,423.08x = 2,768,810,773,061,590,528 - Step 5: Solve for x
x = 2,768,810,773,061,590,528/1,565,839,423.08 - Step 6: Final answer
x = 1,768,259,715.68
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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.