Finding the Fourth Proportional to 5,185,565,967.36, 7,778,368,896.48 and 1,255,265,693.76
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Solution
The fourth proportional to 5,185,565,967.36, 7,778,368,896.48 and 1,255,265,693.76 is: 1,882,903,368.82
Step by Step Solution
- Step 1: Write the proportion equation
5,185,565,967.36 : 7,778,368,896.48 = 1,255,265,693.76 : x - Step 2: Convert to fraction form
5,185,565,967.36/7,778,368,896.48 = 1,255,265,693.76/x - Step 3: Cross multiply
5,185,565,967.36x = 7,778,368,896.48 × 1,255,265,693.76 - Step 4: Simplify right side
5,185,565,967.36x = 9,763,919,629,161,172,992 - Step 5: Solve for x
x = 9,763,919,629,161,172,992/5,185,565,967.36 - Step 6: Final answer
x = 1,882,903,368.82
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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.