Finding the Fourth Proportional to 1,500,588,681.63, 2,070,824,539.43 and 831,544,902.08
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Solution
The fourth proportional to 1,500,588,681.63, 2,070,824,539.43 and 831,544,902.08 is: 1,147,538,702.61
Step by Step Solution
- Step 1: Write the proportion equation
1,500,588,681.63 : 2,070,824,539.43 = 831,544,902.08 : x - Step 2: Convert to fraction form
1,500,588,681.63/2,070,824,539.43 = 831,544,902.08/x - Step 3: Cross multiply
1,500,588,681.63x = 2,070,824,539.43 × 831,544,902.08 - Step 4: Simplify right side
1,500,588,681.63x = 1,721,983,588,872,436,224 - Step 5: Solve for x
x = 1,721,983,588,872,436,224/1,500,588,681.63 - Step 6: Final answer
x = 1,147,538,702.61
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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.