Finding the Fourth Proportional to 5,225,960,937.20, 7,838,941,405.80 and 1,779,388,905.20
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Solution
The fourth proportional to 5,225,960,937.20, 7,838,941,405.80 and 1,779,388,905.20 is: 2,669,083,357.80
Step by Step Solution
- Step 1: Write the proportion equation
5,225,960,937.20 : 7,838,941,405.80 = 1,779,388,905.20 : x - Step 2: Convert to fraction form
5,225,960,937.20/7,838,941,405.80 = 1,779,388,905.20/x - Step 3: Cross multiply
5,225,960,937.20x = 7,838,941,405.80 × 1,779,388,905.20 - Step 4: Simplify right side
5,225,960,937.20x = 13,948,525,365,993,412,608 - Step 5: Solve for x
x = 13,948,525,365,993,412,608/5,225,960,937.20 - Step 6: Final answer
x = 2,669,083,357.80
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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.