Finding the Fourth Proportional to 86,977,342.80, 130,354,039.80 and 66,681,982.80
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Solution
The fourth proportional to 86,977,342.80, 130,354,039.80 and 66,681,982.80 is: 99,937,127.99
Step by Step Solution
- Step 1: Write the proportion equation
86,977,342.80 : 130,354,039.80 = 66,681,982.80 : x - Step 2: Convert to fraction form
86,977,342.80/130,354,039.80 = 66,681,982.80/x - Step 3: Cross multiply
86,977,342.80x = 130,354,039.80 × 66,681,982.80 - Step 4: Simplify right side
86,977,342.80x = 8,692,265,839,854,115 - Step 5: Solve for x
x = 8,692,265,839,854,115/86,977,342.80 - Step 6: Final answer
x = 99,937,127.99
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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.