Finding the Fourth Proportional to 430,920,139.80, 604,818,745.80 and 430,920,139.80
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Solution
The fourth proportional to 430,920,139.80, 604,818,745.80 and 430,920,139.80 is: 604,818,745.80
Step by Step Solution
- Step 1: Write the proportion equation
430,920,139.80 : 604,818,745.80 = 430,920,139.80 : x - Step 2: Convert to fraction form
430,920,139.80/604,818,745.80 = 430,920,139.80/x - Step 3: Cross multiply
430,920,139.80x = 604,818,745.80 × 430,920,139.80 - Step 4: Simplify right side
430,920,139.80x = 260,628,578,493,796,640 - Step 5: Solve for x
x = 260,628,578,493,796,640/430,920,139.80 - Step 6: Final answer
x = 604,818,745.80
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Why These Related Problems?
These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.