Finding the Fourth Proportional to 1,156,305,873.30, 1,595,656,136.75 and 654,618,725.21
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Solution
The fourth proportional to 1,156,305,873.30, 1,595,656,136.75 and 654,618,725.21 is: 903,347,816.72
Step by Step Solution
- Step 1: Write the proportion equation
1,156,305,873.30 : 1,595,656,136.75 = 654,618,725.21 : x - Step 2: Convert to fraction form
1,156,305,873.30/1,595,656,136.75 = 654,618,725.21/x - Step 3: Cross multiply
1,156,305,873.30x = 1,595,656,136.75 × 654,618,725.21 - Step 4: Simplify right side
1,156,305,873.30x = 1,044,546,386,101,547,008 - Step 5: Solve for x
x = 1,044,546,386,101,547,008/1,156,305,873.30 - Step 6: Final answer
x = 903,347,816.72
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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.