Finding the Fourth Proportional to 13,201,390.80, 19,813,750.20 and 7,803,291.60
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Solution
The fourth proportional to 13,201,390.80, 19,813,750.20 and 7,803,291.60 is: 11,711,831.95
Step by Step Solution
- Step 1: Write the proportion equation
13,201,390.80 : 19,813,750.20 = 7,803,291.60 : x - Step 2: Convert to fraction form
13,201,390.80/19,813,750.20 = 7,803,291.60/x - Step 3: Cross multiply
13,201,390.80x = 19,813,750.20 × 7,803,291.60 - Step 4: Simplify right side
13,201,390.80x = 154,612,470,500,158.31 - Step 5: Solve for x
x = 154,612,470,500,158.31/13,201,390.80 - Step 6: Final answer
x = 11,711,831.95
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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.