Finding the Fourth Proportional to 1,187,338,097.24, 1,637,845,817.36 and 740,525,740.64
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Solution
The fourth proportional to 1,187,338,097.24, 1,637,845,817.36 and 740,525,740.64 is: 1,021,500,943.81
Step by Step Solution
- Step 1: Write the proportion equation
1,187,338,097.24 : 1,637,845,817.36 = 740,525,740.64 : x - Step 2: Convert to fraction form
1,187,338,097.24/1,637,845,817.36 = 740,525,740.64/x - Step 3: Cross multiply
1,187,338,097.24x = 1,637,845,817.36 × 740,525,740.64 - Step 4: Simplify right side
1,187,338,097.24x = 1,212,866,986,942,748,416 - Step 5: Solve for x
x = 1,212,866,986,942,748,416/1,187,338,097.24 - Step 6: Final answer
x = 1,021,500,943.81
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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.