Finding the Fourth Proportional to 48,512,603.80, 72,768,905.70 and 39,903,259.60
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Solution
The fourth proportional to 48,512,603.80, 72,768,905.70 and 39,903,259.60 is: 59,854,889.40
Step by Step Solution
- Step 1: Write the proportion equation
48,512,603.80 : 72,768,905.70 = 39,903,259.60 : x - Step 2: Convert to fraction form
48,512,603.80/72,768,905.70 = 39,903,259.60/x - Step 3: Cross multiply
48,512,603.80x = 72,768,905.70 × 39,903,259.60 - Step 4: Simplify right side
48,512,603.80x = 2,903,716,534,955,020 - Step 5: Solve for x
x = 2,903,716,534,955,020/48,512,603.80 - Step 6: Final answer
x = 59,854,889.40
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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.