Finding the Fourth Proportional to 854,636,821.60, 1,281,955,232.40 and 845,566,895.20
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Solution
The fourth proportional to 854,636,821.60, 1,281,955,232.40 and 845,566,895.20 is: 1,268,350,342.80
Step by Step Solution
- Step 1: Write the proportion equation
854,636,821.60 : 1,281,955,232.40 = 845,566,895.20 : x - Step 2: Convert to fraction form
854,636,821.60/1,281,955,232.40 = 845,566,895.20/x - Step 3: Cross multiply
854,636,821.60x = 1,281,955,232.40 × 845,566,895.20 - Step 4: Simplify right side
854,636,821.60x = 1,083,978,905,645,862,528 - Step 5: Solve for x
x = 1,083,978,905,645,862,528/854,636,821.60 - Step 6: Final answer
x = 1,268,350,342.80
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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.