Finding the Fourth Proportional to 687,899,382.58, 1,030,828,706.34 and 505,253,739.70
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Solution
The fourth proportional to 687,899,382.58, 1,030,828,706.34 and 505,253,739.70 is: 757,131,161.99
Step by Step Solution
- Step 1: Write the proportion equation
687,899,382.58 : 1,030,828,706.34 = 505,253,739.70 : x - Step 2: Convert to fraction form
687,899,382.58/1,030,828,706.34 = 505,253,739.70/x - Step 3: Cross multiply
687,899,382.58x = 1,030,828,706.34 × 505,253,739.70 - Step 4: Simplify right side
687,899,382.58x = 520,830,058,868,398,080 - Step 5: Solve for x
x = 520,830,058,868,398,080/687,899,382.58 - Step 6: Final answer
x = 757,131,161.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.