Finding the Fourth Proportional to 5,185,565,969.36, 7,778,368,899.48 and 1,255,265,695.76
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Solution
The fourth proportional to 5,185,565,969.36, 7,778,368,899.48 and 1,255,265,695.76 is: 1,882,903,371.82
Step by Step Solution
- Step 1: Write the proportion equation
5,185,565,969.36 : 7,778,368,899.48 = 1,255,265,695.76 : x - Step 2: Convert to fraction form
5,185,565,969.36/7,778,368,899.48 = 1,255,265,695.76/x - Step 3: Cross multiply
5,185,565,969.36x = 7,778,368,899.48 × 1,255,265,695.76 - Step 4: Simplify right side
5,185,565,969.36x = 9,763,919,648,483,706,880 - Step 5: Solve for x
x = 9,763,919,648,483,706,880/5,185,565,969.36 - Step 6: Final answer
x = 1,882,903,371.82
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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.