Finding the Fourth Proportional to 3,065,661,930, 4,230,615,316.74 and 1,655,966,515.62
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Solution
The fourth proportional to 3,065,661,930, 4,230,615,316.74 and 1,655,966,515.62 is: 2,285,234,792.67
Step by Step Solution
- Step 1: Write the proportion equation
3,065,661,930 : 4,230,615,316.74 = 1,655,966,515.62 : x - Step 2: Convert to fraction form
3,065,661,930/4,230,615,316.74 = 1,655,966,515.62/x - Step 3: Cross multiply
3,065,661,930x = 4,230,615,316.74 × 1,655,966,515.62 - Step 4: Simplify right side
3,065,661,930x = 7,005,757,304,990,539,776 - Step 5: Solve for x
x = 7,005,757,304,990,539,776/3,065,661,930 - Step 6: Final answer
x = 2,285,234,792.67
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.