Finding the Fourth Proportional to 75,623,875.20, 113,435,812.80 and 73,944,259.20
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Solution
The fourth proportional to 75,623,875.20, 113,435,812.80 and 73,944,259.20 is: 110,916,388.80
Step by Step Solution
- Step 1: Write the proportion equation
75,623,875.20 : 113,435,812.80 = 73,944,259.20 : x - Step 2: Convert to fraction form
75,623,875.20/113,435,812.80 = 73,944,259.20/x - Step 3: Cross multiply
75,623,875.20x = 113,435,812.80 × 73,944,259.20 - Step 4: Simplify right side
75,623,875.20x = 8,387,927,144,245,878 - Step 5: Solve for x
x = 8,387,927,144,245,878/75,623,875.20 - Step 6: Final answer
x = 110,916,388.80
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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.