Finding the Fourth Proportional to 153,281,886.40, 211,497,426.42 and 88,079,193.28
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Solution
The fourth proportional to 153,281,886.40, 211,497,426.42 and 88,079,193.28 is: 121,531,141.99
Step by Step Solution
- Step 1: Write the proportion equation
153,281,886.40 : 211,497,426.42 = 88,079,193.28 : x - Step 2: Convert to fraction form
153,281,886.40/211,497,426.42 = 88,079,193.28/x - Step 3: Cross multiply
153,281,886.40x = 211,497,426.42 × 88,079,193.28 - Step 4: Simplify right side
153,281,886.40x = 18,628,522,699,869,756 - Step 5: Solve for x
x = 18,628,522,699,869,756/153,281,886.40 - Step 6: Final answer
x = 121,531,141.99
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.