Finding the Fourth Proportional to 238,862,149,883.36, 329,629,754,231.19 and 128,996,485,368.52
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Solution
The fourth proportional to 238,862,149,883.36, 329,629,754,231.19 and 128,996,485,368.52 is: 178,015,142,999.74
Step by Step Solution
- Step 1: Write the proportion equation
238,862,149,883.36 : 329,629,754,231.19 = 128,996,485,368.52 : x - Step 2: Convert to fraction form
238,862,149,883.36/329,629,754,231.19 = 128,996,485,368.52/x - Step 3: Cross multiply
238,862,149,883.36x = 329,629,754,231.19 × 128,996,485,368.52 - Step 4: Simplify right side
238,862,149,883.36x = 42,521,079,768,712,550,023,168 - Step 5: Solve for x
x = 42,521,079,768,712,550,023,168/238,862,149,883.36 - Step 6: Final answer
x = 178,015,142,999.74
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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.