Finding the Fourth Proportional to 133,728,978.84, 184,467,803.24 and 84,090,792.12
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Solution
The fourth proportional to 133,728,978.84, 184,467,803.24 and 84,090,792.12 is: 115,996,127.61
Step by Step Solution
- Step 1: Write the proportion equation
133,728,978.84 : 184,467,803.24 = 84,090,792.12 : x - Step 2: Convert to fraction form
133,728,978.84/184,467,803.24 = 84,090,792.12/x - Step 3: Cross multiply
133,728,978.84x = 184,467,803.24 × 84,090,792.12 - Step 4: Simplify right side
133,728,978.84x = 15,512,043,695,087,904 - Step 5: Solve for x
x = 15,512,043,695,087,904/133,728,978.84 - Step 6: Final answer
x = 115,996,127.61
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.