Finding the Fourth Proportional to 291,936,207.96, 402,873,031.26 and 157,974,124.68
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Solution
The fourth proportional to 291,936,207.96, 402,873,031.26 and 157,974,124.68 is: 218,004,867.96
Step by Step Solution
- Step 1: Write the proportion equation
291,936,207.96 : 402,873,031.26 = 157,974,124.68 : x - Step 2: Convert to fraction form
291,936,207.96/402,873,031.26 = 157,974,124.68/x - Step 3: Cross multiply
291,936,207.96x = 402,873,031.26 × 157,974,124.68 - Step 4: Simplify right side
291,936,207.96x = 63,643,514,470,476,776 - Step 5: Solve for x
x = 63,643,514,470,476,776/291,936,207.96 - Step 6: Final answer
x = 218,004,867.96
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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.