Finding the Fourth Proportional to 1,403,702,701.24, 1,937,239,713.68 and 777,171,139.24
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Solution
The fourth proportional to 1,403,702,701.24, 1,937,239,713.68 and 777,171,139.24 is: 1,072,568,139.91
Step by Step Solution
- Step 1: Write the proportion equation
1,403,702,701.24 : 1,937,239,713.68 = 777,171,139.24 : x - Step 2: Convert to fraction form
1,403,702,701.24/1,937,239,713.68 = 777,171,139.24/x - Step 3: Cross multiply
1,403,702,701.24x = 1,937,239,713.68 × 777,171,139.24 - Step 4: Simplify right side
1,403,702,701.24x = 1,505,566,795,261,657,088 - Step 5: Solve for x
x = 1,505,566,795,261,657,088/1,403,702,701.24 - Step 6: Final answer
x = 1,072,568,139.91
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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.