Finding the Fourth Proportional to 21,129,231.74, 31,704,656.86 and 10,062,831.92
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Solution
The fourth proportional to 21,129,231.74, 31,704,656.86 and 10,062,831.92 is: 15,099,395.80
Step by Step Solution
- Step 1: Write the proportion equation
21,129,231.74 : 31,704,656.86 = 10,062,831.92 : x - Step 2: Convert to fraction form
21,129,231.74/31,704,656.86 = 10,062,831.92/x - Step 3: Cross multiply
21,129,231.74x = 31,704,656.86 × 10,062,831.92 - Step 4: Simplify right side
21,129,231.74x = 319,038,633,063,454.94 - Step 5: Solve for x
x = 319,038,633,063,454.94/21,129,231.74 - Step 6: Final answer
x = 15,099,395.80
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.