Finding the Fourth Proportional to 374,112,037.80, 561,168,056.70 and 212,868,901.80
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Solution
The fourth proportional to 374,112,037.80, 561,168,056.70 and 212,868,901.80 is: 319,303,352.70
Step by Step Solution
- Step 1: Write the proportion equation
374,112,037.80 : 561,168,056.70 = 212,868,901.80 : x - Step 2: Convert to fraction form
374,112,037.80/561,168,056.70 = 212,868,901.80/x - Step 3: Cross multiply
374,112,037.80x = 561,168,056.70 × 212,868,901.80 - Step 4: Simplify right side
374,112,037.80x = 119,455,227,954,969,152 - Step 5: Solve for x
x = 119,455,227,954,969,152/374,112,037.80 - Step 6: Final answer
x = 319,303,352.70
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1.5x scale
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.