Finding the Fourth Proportional to 45,781,491.70, 68,672,237.55 and 42,273,981.10
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Solution
The fourth proportional to 45,781,491.70, 68,672,237.55 and 42,273,981.10 is: 63,410,971.65
Step by Step Solution
- Step 1: Write the proportion equation
45,781,491.70 : 68,672,237.55 = 42,273,981.10 : x - Step 2: Convert to fraction form
45,781,491.70/68,672,237.55 = 42,273,981.10/x - Step 3: Cross multiply
45,781,491.70x = 68,672,237.55 × 42,273,981.10 - Step 4: Simplify right side
45,781,491.70x = 2,903,048,872,283,410.50 - Step 5: Solve for x
x = 2,903,048,872,283,410.50/45,781,491.70 - Step 6: Final answer
x = 63,410,971.65
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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.