Finding the Fourth Proportional to 761,862,687.59, 1,142,738,540.36 and 341,814,129.63
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Solution
The fourth proportional to 761,862,687.59, 1,142,738,540.36 and 341,814,129.63 is: 512,696,298.07
Step by Step Solution
- Step 1: Write the proportion equation
761,862,687.59 : 1,142,738,540.36 = 341,814,129.63 : x - Step 2: Convert to fraction form
761,862,687.59/1,142,738,540.36 = 341,814,129.63/x - Step 3: Cross multiply
761,862,687.59x = 1,142,738,540.36 × 341,814,129.63 - Step 4: Simplify right side
761,862,687.59x = 390,604,179,565,028,736 - Step 5: Solve for x
x = 390,604,179,565,028,736/761,862,687.59 - Step 6: Final answer
x = 512,696,298.07
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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.