Finding the Fourth Proportional to 553,202,746.20, 829,804,119.30 and 521,458,003.80
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Solution
The fourth proportional to 553,202,746.20, 829,804,119.30 and 521,458,003.80 is: 782,187,005.70
Step by Step Solution
- Step 1: Write the proportion equation
553,202,746.20 : 829,804,119.30 = 521,458,003.80 : x - Step 2: Convert to fraction form
553,202,746.20/829,804,119.30 = 521,458,003.80/x - Step 3: Cross multiply
553,202,746.20x = 829,804,119.30 × 521,458,003.80 - Step 4: Simplify right side
553,202,746.20x = 432,707,999,595,195,008 - Step 5: Solve for x
x = 432,707,999,595,195,008/553,202,746.20 - Step 6: Final answer
x = 782,187,005.70
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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.