Finding the Fourth Proportional to 357,467,908.40, 536,201,884.20 and 115,130,812.40
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Solution
The fourth proportional to 357,467,908.40, 536,201,884.20 and 115,130,812.40 is: 172,696,225.56
Step by Step Solution
- Step 1: Write the proportion equation
357,467,908.40 : 536,201,884.20 = 115,130,812.40 : x - Step 2: Convert to fraction form
357,467,908.40/536,201,884.20 = 115,130,812.40/x - Step 3: Cross multiply
357,467,908.40x = 536,201,884.20 × 115,130,812.40 - Step 4: Simplify right side
357,467,908.40x = 61,733,358,538,356,728 - Step 5: Solve for x
x = 61,733,358,538,356,728/357,467,908.40 - Step 6: Final answer
x = 172,696,225.56
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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.