Finding the Fourth Proportional to 104,485,430.01, 156,387,102.54 and 76,812,021.09
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Solution
The fourth proportional to 104,485,430.01, 156,387,102.54 and 76,812,021.09 is: 114,967,315.70
Step by Step Solution
- Step 1: Write the proportion equation
104,485,430.01 : 156,387,102.54 = 76,812,021.09 : x - Step 2: Convert to fraction form
104,485,430.01/156,387,102.54 = 76,812,021.09/x - Step 3: Cross multiply
104,485,430.01x = 156,387,102.54 × 76,812,021.09 - Step 4: Simplify right side
104,485,430.01x = 12,012,409,418,218,428 - Step 5: Solve for x
x = 12,012,409,418,218,428/104,485,430.01 - Step 6: Final answer
x = 114,967,315.70
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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.