Finding the Fourth Proportional to 86,831,083.01, 130,218,971.72 and 28,525,226.99
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Solution
The fourth proportional to 86,831,083.01, 130,218,971.72 and 28,525,226.99 is: 42,778,756.16
Step by Step Solution
- Step 1: Write the proportion equation
86,831,083.01 : 130,218,971.72 = 28,525,226.99 : x - Step 2: Convert to fraction form
86,831,083.01/130,218,971.72 = 28,525,226.99/x - Step 3: Cross multiply
86,831,083.01x = 130,218,971.72 × 28,525,226.99 - Step 4: Simplify right side
86,831,083.01x = 3,714,525,727,114,251 - Step 5: Solve for x
x = 3,714,525,727,114,251/86,831,083.01 - Step 6: Final answer
x = 42,778,756.16
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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.