Finding the Fourth Proportional to 728,124,868.14, 1,092,964,533.86 and 313,806,157.19
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Solution
The fourth proportional to 728,124,868.14, 1,092,964,533.86 and 313,806,157.19 is: 471,044,205.91
Step by Step Solution
- Step 1: Write the proportion equation
728,124,868.14 : 1,092,964,533.86 = 313,806,157.19 : x - Step 2: Convert to fraction form
728,124,868.14/1,092,964,533.86 = 313,806,157.19/x - Step 3: Cross multiply
728,124,868.14x = 1,092,964,533.86 × 313,806,157.19 - Step 4: Simplify right side
728,124,868.14x = 342,979,000,319,083,136 - Step 5: Solve for x
x = 342,979,000,319,083,136/728,124,868.14 - Step 6: Final answer
x = 471,044,205.91
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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.