Finding the Fourth Proportional to 1,403,444,029.45, 1,936,768,066.14 and 776,922,920.14
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Solution
The fourth proportional to 1,403,444,029.45, 1,936,768,066.14 and 776,922,920.14 is: 1,072,162,102.66
Step by Step Solution
- Step 1: Write the proportion equation
1,403,444,029.45 : 1,936,768,066.14 = 776,922,920.14 : x - Step 2: Convert to fraction form
1,403,444,029.45/1,936,768,066.14 = 776,922,920.14/x - Step 3: Cross multiply
1,403,444,029.45x = 1,936,768,066.14 × 776,922,920.14 - Step 4: Simplify right side
1,403,444,029.45x = 1,504,719,501,578,829,824 - Step 5: Solve for x
x = 1,504,719,501,578,829,824/1,403,444,029.45 - Step 6: Final answer
x = 1,072,162,102.66
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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.