Finding the Fourth Proportional to 27,620,957,202.80, 38,116,849,246.20 and 15,413,534,325.68
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Solution
The fourth proportional to 27,620,957,202.80, 38,116,849,246.20 and 15,413,534,325.68 is: 21,270,637,361.67
Step by Step Solution
- Step 1: Write the proportion equation
27,620,957,202.80 : 38,116,849,246.20 = 15,413,534,325.68 : x - Step 2: Convert to fraction form
27,620,957,202.80/38,116,849,246.20 = 15,413,534,325.68/x - Step 3: Cross multiply
27,620,957,202.80x = 38,116,849,246.20 × 15,413,534,325.68 - Step 4: Simplify right side
27,620,957,202.80x = 587,515,364,243,073,466,368 - Step 5: Solve for x
x = 587,515,364,243,073,466,368/27,620,957,202.80 - Step 6: Final answer
x = 21,270,637,361.67
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1.5x scale
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.