Finding the Fourth Proportional to 276,850,831.20, 415,276,246.80 and 263,413,903.20
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Solution
The fourth proportional to 276,850,831.20, 415,276,246.80 and 263,413,903.20 is: 395,120,854.80
Step by Step Solution
- Step 1: Write the proportion equation
276,850,831.20 : 415,276,246.80 = 263,413,903.20 : x - Step 2: Convert to fraction form
276,850,831.20/415,276,246.80 = 263,413,903.20/x - Step 3: Cross multiply
276,850,831.20x = 415,276,246.80 × 263,413,903.20 - Step 4: Simplify right side
276,850,831.20x = 109,389,537,075,834,512 - Step 5: Solve for x
x = 109,389,537,075,834,512/276,850,831.20 - Step 6: Final answer
x = 395,120,854.80
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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.