Finding the Fourth Proportional to 553,203,368.70, 829,805,053.05 and 521,458,626.30
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Solution
The fourth proportional to 553,203,368.70, 829,805,053.05 and 521,458,626.30 is: 782,187,939.45
Step by Step Solution
- Step 1: Write the proportion equation
553,203,368.70 : 829,805,053.05 = 521,458,626.30 : x - Step 2: Convert to fraction form
553,203,368.70/829,805,053.05 = 521,458,626.30/x - Step 3: Cross multiply
553,203,368.70x = 829,805,053.05 × 521,458,626.30 - Step 4: Simplify right side
553,203,368.70x = 432,709,003,060,251,584 - Step 5: Solve for x
x = 432,709,003,060,251,584/553,203,368.70 - Step 6: Final answer
x = 782,187,939.45
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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.