Finding the Fourth Proportional to 2,391,276,462.99, 3,299,552,837.48 and 1,387,463,908.71
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Solution
The fourth proportional to 2,391,276,462.99, 3,299,552,837.48 and 1,387,463,908.71 is: 1,914,463,069.30
Step by Step Solution
- Step 1: Write the proportion equation
2,391,276,462.99 : 3,299,552,837.48 = 1,387,463,908.71 : x - Step 2: Convert to fraction form
2,391,276,462.99/3,299,552,837.48 = 1,387,463,908.71/x - Step 3: Cross multiply
2,391,276,462.99x = 3,299,552,837.48 × 1,387,463,908.71 - Step 4: Simplify right side
2,391,276,462.99x = 4,578,010,476,876,735,488 - Step 5: Solve for x
x = 4,578,010,476,876,735,488/2,391,276,462.99 - Step 6: Final answer
x = 1,914,463,069.30
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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.