Finding the Fourth Proportional to 1,357,035,431.36, 1,872,788,889 and 1,021,916,708.48
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Solution
The fourth proportional to 1,357,035,431.36, 1,872,788,889 and 1,021,916,708.48 is: 1,410,305,297.05
Step by Step Solution
- Step 1: Write the proportion equation
1,357,035,431.36 : 1,872,788,889 = 1,021,916,708.48 : x - Step 2: Convert to fraction form
1,357,035,431.36/1,872,788,889 = 1,021,916,708.48/x - Step 3: Cross multiply
1,357,035,431.36x = 1,872,788,889 × 1,021,916,708.48 - Step 4: Simplify right side
1,357,035,431.36x = 1,913,834,257,124,796,160 - Step 5: Solve for x
x = 1,913,834,257,124,796,160/1,357,035,431.36 - Step 6: Final answer
x = 1,410,305,297.05
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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.