Finding the Fourth Proportional to 1,223,657,351,672.90, 1,688,652,395,173.80 and 667,474,599,159.15
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Solution
The fourth proportional to 1,223,657,351,672.90, 1,688,652,395,173.80 and 667,474,599,159.15 is: 921,117,810,510.30
Step by Step Solution
- Step 1: Write the proportion equation
1,223,657,351,672.90 : 1,688,652,395,173.80 = 667,474,599,159.15 : x - Step 2: Convert to fraction form
1,223,657,351,672.90/1,688,652,395,173.80 = 667,474,599,159.15/x - Step 3: Cross multiply
1,223,657,351,672.90x = 1,688,652,395,173.80 × 667,474,599,159.15 - Step 4: Simplify right side
1,223,657,351,672.90x = 1,127,132,580,587,770,776,387,584 - Step 5: Solve for x
x = 1,127,132,580,587,770,776,387,584/1,223,657,351,672.90 - Step 6: Final answer
x = 921,117,810,510.30
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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.