Finding the Fourth Proportional to 7,412,416,642.74, 11,118,615,574.60 and 1,891,674,798.42
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Solution
The fourth proportional to 7,412,416,642.74, 11,118,615,574.60 and 1,891,674,798.42 is: 2,837,509,801.39
Step by Step Solution
- Step 1: Write the proportion equation
7,412,416,642.74 : 11,118,615,574.60 = 1,891,674,798.42 : x - Step 2: Convert to fraction form
7,412,416,642.74/11,118,615,574.60 = 1,891,674,798.42/x - Step 3: Cross multiply
7,412,416,642.74x = 11,118,615,574.60 × 1,891,674,798.42 - Step 4: Simplify right side
7,412,416,642.74x = 21,032,804,875,790,929,920 - Step 5: Solve for x
x = 21,032,804,875,790,929,920/7,412,416,642.74 - Step 6: Final answer
x = 2,837,509,801.39
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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.