Finding the Fourth Proportional to 2,426,111,938.60, 3,639,167,907.90 and 873,642,869.80
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Solution
The fourth proportional to 2,426,111,938.60, 3,639,167,907.90 and 873,642,869.80 is: 1,310,464,304.70
Step by Step Solution
- Step 1: Write the proportion equation
2,426,111,938.60 : 3,639,167,907.90 = 873,642,869.80 : x - Step 2: Convert to fraction form
2,426,111,938.60/3,639,167,907.90 = 873,642,869.80/x - Step 3: Cross multiply
2,426,111,938.60x = 3,639,167,907.90 × 873,642,869.80 - Step 4: Simplify right side
2,426,111,938.60x = 3,179,333,094,741,817,856 - Step 5: Solve for x
x = 3,179,333,094,741,817,856/2,426,111,938.60 - Step 6: Final answer
x = 1,310,464,304.70
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1.5x scale
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.