Finding the Fourth Proportional to 1,452,168,051.30, 2,178,252,076.95 and 361,651,119.30
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Solution
The fourth proportional to 1,452,168,051.30, 2,178,252,076.95 and 361,651,119.30 is: 542,476,678.95
Step by Step Solution
- Step 1: Write the proportion equation
1,452,168,051.30 : 2,178,252,076.95 = 361,651,119.30 : x - Step 2: Convert to fraction form
1,452,168,051.30/2,178,252,076.95 = 361,651,119.30/x - Step 3: Cross multiply
1,452,168,051.30x = 2,178,252,076.95 × 361,651,119.30 - Step 4: Simplify right side
1,452,168,051.30x = 787,767,301,746,517,248 - Step 5: Solve for x
x = 787,767,301,746,517,248/1,452,168,051.30 - Step 6: Final answer
x = 542,476,678.95
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Double scale
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Similar ratio
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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.