Finding the Fourth Proportional to 1,500,588,680.13, 2,070,824,537.36 and 831,544,900.58
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Solution
The fourth proportional to 1,500,588,680.13, 2,070,824,537.36 and 831,544,900.58 is: 1,147,538,700.54
Step by Step Solution
- Step 1: Write the proportion equation
1,500,588,680.13 : 2,070,824,537.36 = 831,544,900.58 : x - Step 2: Convert to fraction form
1,500,588,680.13/2,070,824,537.36 = 831,544,900.58/x - Step 3: Cross multiply
1,500,588,680.13x = 2,070,824,537.36 × 831,544,900.58 - Step 4: Simplify right side
1,500,588,680.13x = 1,721,983,584,044,901,632 - Step 5: Solve for x
x = 1,721,983,584,044,901,632/1,500,588,680.13 - Step 6: Final answer
x = 1,147,538,700.54
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1.5x scale
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.