Finding the Fourth Proportional to 839,294,077.20, 1,258,941,115.80 and 788,233,750.80
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Solution
The fourth proportional to 839,294,077.20, 1,258,941,115.80 and 788,233,750.80 is: 1,182,350,626.20
Step by Step Solution
- Step 1: Write the proportion equation
839,294,077.20 : 1,258,941,115.80 = 788,233,750.80 : x - Step 2: Convert to fraction form
839,294,077.20/1,258,941,115.80 = 788,233,750.80/x - Step 3: Cross multiply
839,294,077.20x = 1,258,941,115.80 × 788,233,750.80 - Step 4: Simplify right side
839,294,077.20x = 992,339,877,743,371,008 - Step 5: Solve for x
x = 992,339,877,743,371,008/839,294,077.20 - Step 6: Final answer
x = 1,182,350,626.20
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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.