Finding the Fourth Proportional to 1,403,334,396,939.40, 2,104,752,767,904.80 and 638,243,339,783.52
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Solution
The fourth proportional to 1,403,334,396,939.40, 2,104,752,767,904.80 and 638,243,339,783.52 is: 957,251,841,710.67
Step by Step Solution
- Step 1: Write the proportion equation
1,403,334,396,939.40 : 2,104,752,767,904.80 = 638,243,339,783.52 : x - Step 2: Convert to fraction form
1,403,334,396,939.40/2,104,752,767,904.80 = 638,243,339,783.52/x - Step 3: Cross multiply
1,403,334,396,939.40x = 2,104,752,767,904.80 × 638,243,339,783.52 - Step 4: Simplify right side
1,403,334,396,939.40x = 1,343,344,436,006,167,676,715,008 - Step 5: Solve for x
x = 1,343,344,436,006,167,676,715,008/1,403,334,396,939.40 - Step 6: Final answer
x = 957,251,841,710.67
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.