Finding the Fourth Proportional to 20,551,251.42, 30,830,440.05 and 6,905,730.06
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Solution
The fourth proportional to 20,551,251.42, 30,830,440.05 and 6,905,730.06 is: 10,359,792.32
Step by Step Solution
- Step 1: Write the proportion equation
20,551,251.42 : 30,830,440.05 = 6,905,730.06 : x - Step 2: Convert to fraction form
20,551,251.42/30,830,440.05 = 6,905,730.06/x - Step 3: Cross multiply
20,551,251.42x = 30,830,440.05 × 6,905,730.06 - Step 4: Simplify right side
20,551,251.42x = 212,906,696,616,312.91 - Step 5: Solve for x
x = 212,906,696,616,312.91/20,551,251.42 - Step 6: Final answer
x = 10,359,792.32
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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.