Finding the Fourth Proportional to 76,845,817.08, 115,260,206.58 and 19,338,103.80
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Solution
The fourth proportional to 76,845,817.08, 115,260,206.58 and 19,338,103.80 is: 29,005,011.90
Step by Step Solution
- Step 1: Write the proportion equation
76,845,817.08 : 115,260,206.58 = 19,338,103.80 : x - Step 2: Convert to fraction form
76,845,817.08/115,260,206.58 = 19,338,103.80/x - Step 3: Cross multiply
76,845,817.08x = 115,260,206.58 × 19,338,103.80 - Step 4: Simplify right side
76,845,817.08x = 2,228,913,838,853,483 - Step 5: Solve for x
x = 2,228,913,838,853,483/76,845,817.08 - Step 6: Final answer
x = 29,005,011.90
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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.