Finding the Fourth Proportional to 729,244,368.63, 1,006,357,277.92 and 399,219,507.63
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Solution
The fourth proportional to 729,244,368.63, 1,006,357,277.92 and 399,219,507.63 is: 550,922,947.47
Step by Step Solution
- Step 1: Write the proportion equation
729,244,368.63 : 1,006,357,277.92 = 399,219,507.63 : x - Step 2: Convert to fraction form
729,244,368.63/1,006,357,277.92 = 399,219,507.63/x - Step 3: Cross multiply
729,244,368.63x = 1,006,357,277.92 × 399,219,507.63 - Step 4: Simplify right side
729,244,368.63x = 401,757,456,992,087,552 - Step 5: Solve for x
x = 401,757,456,992,087,552/729,244,368.63 - Step 6: Final answer
x = 550,922,947.47
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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.