Finding the Fourth Proportional to 618,484,905.98, 925,708,631.61 and 454,679,266.94
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Solution
The fourth proportional to 618,484,905.98, 925,708,631.61 and 454,679,266.94 is: 680,534,832.70
Step by Step Solution
- Step 1: Write the proportion equation
618,484,905.98 : 925,708,631.61 = 454,679,266.94 : x - Step 2: Convert to fraction form
618,484,905.98/925,708,631.61 = 454,679,266.94/x - Step 3: Cross multiply
618,484,905.98x = 925,708,631.61 × 454,679,266.94 - Step 4: Simplify right side
618,484,905.98x = 420,900,522,020,465,344 - Step 5: Solve for x
x = 420,900,522,020,465,344/618,484,905.98 - Step 6: Final answer
x = 680,534,832.70
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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.