Finding the Fourth Proportional to 867,750,153.08, 1,197,569,063.34 and 491,473,675.67
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Solution
The fourth proportional to 867,750,153.08, 1,197,569,063.34 and 491,473,675.67 is: 678,275,500.54
Step by Step Solution
- Step 1: Write the proportion equation
867,750,153.08 : 1,197,569,063.34 = 491,473,675.67 : x - Step 2: Convert to fraction form
867,750,153.08/1,197,569,063.34 = 491,473,675.67/x - Step 3: Cross multiply
867,750,153.08x = 1,197,569,063.34 × 491,473,675.67 - Step 4: Simplify right side
867,750,153.08x = 588,573,669,422,401,024 - Step 5: Solve for x
x = 588,573,669,422,401,024/867,750,153.08 - Step 6: Final answer
x = 678,275,500.54
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Double scale
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.