Finding the Fourth Proportional to 113,428,931.10, 170,348,683.05 and 99,320,156.70
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Solution
The fourth proportional to 113,428,931.10, 170,348,683.05 and 99,320,156.70 is: 149,159,987.05
Step by Step Solution
- Step 1: Write the proportion equation
113,428,931.10 : 170,348,683.05 = 99,320,156.70 : x - Step 2: Convert to fraction form
113,428,931.10/170,348,683.05 = 99,320,156.70/x - Step 3: Cross multiply
113,428,931.10x = 170,348,683.05 × 99,320,156.70 - Step 4: Simplify right side
113,428,931.10x = 16,919,057,894,164,636 - Step 5: Solve for x
x = 16,919,057,894,164,636/113,428,931.10 - Step 6: Final answer
x = 149,159,987.05
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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.