Finding the Fourth Proportional to 896,878,717.80, 1,345,318,076.70 and 413,149,309.80
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Solution
The fourth proportional to 896,878,717.80, 1,345,318,076.70 and 413,149,309.80 is: 619,723,964.70
Step by Step Solution
- Step 1: Write the proportion equation
896,878,717.80 : 1,345,318,076.70 = 413,149,309.80 : x - Step 2: Convert to fraction form
896,878,717.80/1,345,318,076.70 = 413,149,309.80/x - Step 3: Cross multiply
896,878,717.80x = 1,345,318,076.70 × 413,149,309.80 - Step 4: Simplify right side
896,878,717.80x = 555,817,234,850,068,480 - Step 5: Solve for x
x = 555,817,234,850,068,480/896,878,717.80 - Step 6: Final answer
x = 619,723,964.70
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1.5x scale
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.