Finding the Fourth Proportional to 1,572,660,007.20, 2,358,990,010.80 and 1,475,725,168.80
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Solution
The fourth proportional to 1,572,660,007.20, 2,358,990,010.80 and 1,475,725,168.80 is: 2,213,587,753.20
Step by Step Solution
- Step 1: Write the proportion equation
1,572,660,007.20 : 2,358,990,010.80 = 1,475,725,168.80 : x - Step 2: Convert to fraction form
1,572,660,007.20/2,358,990,010.80 = 1,475,725,168.80/x - Step 3: Cross multiply
1,572,660,007.20x = 2,358,990,010.80 × 1,475,725,168.80 - Step 4: Simplify right side
1,572,660,007.20x = 3,481,220,931,885,343,744 - Step 5: Solve for x
x = 3,481,220,931,885,343,744/1,572,660,007.20 - Step 6: Final answer
x = 2,213,587,753.20
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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.