Finding the Fourth Proportional to 1,128,447,274.53, 1,692,874,270.59 and 464,343,986.31
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Solution
The fourth proportional to 1,128,447,274.53, 1,692,874,270.59 and 464,343,986.31 is: 696,599,659.43
Step by Step Solution
- Step 1: Write the proportion equation
1,128,447,274.53 : 1,692,874,270.59 = 464,343,986.31 : x - Step 2: Convert to fraction form
1,128,447,274.53/1,692,874,270.59 = 464,343,986.31/x - Step 3: Cross multiply
1,128,447,274.53x = 1,692,874,270.59 × 464,343,986.31 - Step 4: Simplify right side
1,128,447,274.53x = 786,075,987,127,394,176 - Step 5: Solve for x
x = 786,075,987,127,394,176/1,128,447,274.53 - Step 6: Final answer
x = 696,599,659.43
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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.