Finding the Fourth Proportional to 828,584,020.62, 1,143,440,315.91 and 457,306,041.06
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Solution
The fourth proportional to 828,584,020.62, 1,143,440,315.91 and 457,306,041.06 is: 631,079,227.99
Step by Step Solution
- Step 1: Write the proportion equation
828,584,020.62 : 1,143,440,315.91 = 457,306,041.06 : x - Step 2: Convert to fraction form
828,584,020.62/1,143,440,315.91 = 457,306,041.06/x - Step 3: Cross multiply
828,584,020.62x = 1,143,440,315.91 × 457,306,041.06 - Step 4: Simplify right side
828,584,020.62x = 522,902,164,057,197,888 - Step 5: Solve for x
x = 522,902,164,057,197,888/828,584,020.62 - Step 6: Final answer
x = 631,079,227.99
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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.