Finding the Fourth Proportional to 138,179,503.94, 207,340,989.51 and 56,358,410.18
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Solution
The fourth proportional to 138,179,503.94, 207,340,989.51 and 56,358,410.18 is: 84,566,872.80
Step by Step Solution
- Step 1: Write the proportion equation
138,179,503.94 : 207,340,989.51 = 56,358,410.18 : x - Step 2: Convert to fraction form
138,179,503.94/207,340,989.51 = 56,358,410.18/x - Step 3: Cross multiply
138,179,503.94x = 207,340,989.51 × 56,358,410.18 - Step 4: Simplify right side
138,179,503.94x = 11,685,408,533,931,656 - Step 5: Solve for x
x = 11,685,408,533,931,656/138,179,503.94 - Step 6: Final answer
x = 84,566,872.80
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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.