Finding the Fourth Proportional to 156,809,894.19, 216,424,739.97 and 90,766,806.68
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Solution
The fourth proportional to 156,809,894.19, 216,424,739.97 and 90,766,806.68 is: 125,273,871.50
Step by Step Solution
- Step 1: Write the proportion equation
156,809,894.19 : 216,424,739.97 = 90,766,806.68 : x - Step 2: Convert to fraction form
156,809,894.19/216,424,739.97 = 90,766,806.68/x - Step 3: Cross multiply
156,809,894.19x = 216,424,739.97 × 90,766,806.68 - Step 4: Simplify right side
156,809,894.19x = 19,644,182,534,167,320 - Step 5: Solve for x
x = 19,644,182,534,167,320/156,809,894.19 - Step 6: Final answer
x = 125,273,871.50
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.