Finding the Fourth Proportional to 403,749,501.70, 605,624,252.55 and 220,083,492.10
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Solution
The fourth proportional to 403,749,501.70, 605,624,252.55 and 220,083,492.10 is: 330,125,238.15
Step by Step Solution
- Step 1: Write the proportion equation
403,749,501.70 : 605,624,252.55 = 220,083,492.10 : x - Step 2: Convert to fraction form
403,749,501.70/605,624,252.55 = 220,083,492.10/x - Step 3: Cross multiply
403,749,501.70x = 605,624,252.55 × 220,083,492.10 - Step 4: Simplify right side
403,749,501.70x = 133,287,900,401,656,320 - Step 5: Solve for x
x = 133,287,900,401,656,320/403,749,501.70 - Step 6: Final answer
x = 330,125,238.15
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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.