Finding the Fourth Proportional to 83,896,363.30, 125,631,968.55 and 66,890,251.30
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Solution
The fourth proportional to 83,896,363.30, 125,631,968.55 and 66,890,251.30 is: 100,165,890.59
Step by Step Solution
- Step 1: Write the proportion equation
83,896,363.30 : 125,631,968.55 = 66,890,251.30 : x - Step 2: Convert to fraction form
83,896,363.30/125,631,968.55 = 66,890,251.30/x - Step 3: Cross multiply
83,896,363.30x = 125,631,968.55 × 66,890,251.30 - Step 4: Simplify right side
83,896,363.30x = 8,403,553,947,623,196 - Step 5: Solve for x
x = 8,403,553,947,623,196/83,896,363.30 - Step 6: Final answer
x = 100,165,890.59
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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.