Finding the Fourth Proportional to 5,457,545,489.60, 8,186,319,020.10 and 1,316,989,028.60
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Solution
The fourth proportional to 5,457,545,489.60, 8,186,319,020.10 and 1,316,989,028.60 is: 1,975,483,732.50
Step by Step Solution
- Step 1: Write the proportion equation
5,457,545,489.60 : 8,186,319,020.10 = 1,316,989,028.60 : x - Step 2: Convert to fraction form
5,457,545,489.60/8,186,319,020.10 = 1,316,989,028.60/x - Step 3: Cross multiply
5,457,545,489.60x = 8,186,319,020.10 × 1,316,989,028.60 - Step 4: Simplify right side
5,457,545,489.60x = 10,781,292,334,091,202,560 - Step 5: Solve for x
x = 10,781,292,334,091,202,560/5,457,545,489.60 - Step 6: Final answer
x = 1,975,483,732.50
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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.