Finding the Fourth Proportional to 125,152,225.49, 172,697,627.12 and 72,245,977.68
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Solution
The fourth proportional to 125,152,225.49, 172,697,627.12 and 72,245,977.68 is: 99,692,265.68
Step by Step Solution
- Step 1: Write the proportion equation
125,152,225.49 : 172,697,627.12 = 72,245,977.68 : x - Step 2: Convert to fraction form
125,152,225.49/172,697,627.12 = 72,245,977.68/x - Step 3: Cross multiply
125,152,225.49x = 172,697,627.12 × 72,245,977.68 - Step 4: Simplify right side
125,152,225.49x = 12,476,708,913,939,254 - Step 5: Solve for x
x = 12,476,708,913,939,254/125,152,225.49 - Step 6: Final answer
x = 99,692,265.68
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.