Finding the Fourth Proportional to 138,758,130,864.30, 207,990,297,033.58 and 46,673,642,385.70
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Solution
The fourth proportional to 138,758,130,864.30, 207,990,297,033.58 and 46,673,642,385.70 is: 69,961,051,528.83
Step by Step Solution
- Step 1: Write the proportion equation
138,758,130,864.30 : 207,990,297,033.58 = 46,673,642,385.70 : x - Step 2: Convert to fraction form
138,758,130,864.30/207,990,297,033.58 = 46,673,642,385.70/x - Step 3: Cross multiply
138,758,130,864.30x = 207,990,297,033.58 × 46,673,642,385.70 - Step 4: Simplify right side
138,758,130,864.30x = 9,707,664,743,440,830,169,088 - Step 5: Solve for x
x = 9,707,664,743,440,830,169,088/138,758,130,864.30 - Step 6: Final answer
x = 69,961,051,528.83
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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.