Finding the Fourth Proportional to 310,758,568.40, 466,193,839.80 and 129,024,117.20
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Solution
The fourth proportional to 310,758,568.40, 466,193,839.80 and 129,024,117.20 is: 193,559,421.17
Step by Step Solution
- Step 1: Write the proportion equation
310,758,568.40 : 466,193,839.80 = 129,024,117.20 : x - Step 2: Convert to fraction form
310,758,568.40/466,193,839.80 = 129,024,117.20/x - Step 3: Cross multiply
310,758,568.40x = 466,193,839.80 × 129,024,117.20 - Step 4: Simplify right side
310,758,568.40x = 60,150,248,624,273,224 - Step 5: Solve for x
x = 60,150,248,624,273,224/310,758,568.40 - Step 6: Final answer
x = 193,559,421.17
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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.