Finding the Fourth Proportional to 1,226,180,407.61, 1,694,342,402.99 and 873,143,489.74
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Solution
The fourth proportional to 1,226,180,407.61, 1,694,342,402.99 and 873,143,489.74 is: 1,206,514,171.47
Step by Step Solution
- Step 1: Write the proportion equation
1,226,180,407.61 : 1,694,342,402.99 = 873,143,489.74 : x - Step 2: Convert to fraction form
1,226,180,407.61/1,694,342,402.99 = 873,143,489.74/x - Step 3: Cross multiply
1,226,180,407.61x = 1,694,342,402.99 × 873,143,489.74 - Step 4: Simplify right side
1,226,180,407.61x = 1,479,404,038,561,146,112 - Step 5: Solve for x
x = 1,479,404,038,561,146,112/1,226,180,407.61 - Step 6: Final answer
x = 1,206,514,171.47
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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.