Finding the Fourth Proportional to 521,108,389.92, 781,687,722.96 and 171,346,714.08
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Solution
The fourth proportional to 521,108,389.92, 781,687,722.96 and 171,346,714.08 is: 257,028,336.82
Step by Step Solution
- Step 1: Write the proportion equation
521,108,389.92 : 781,687,722.96 = 171,346,714.08 : x - Step 2: Convert to fraction form
521,108,389.92/781,687,722.96 = 171,346,714.08/x - Step 3: Cross multiply
521,108,389.92x = 781,687,722.96 × 171,346,714.08 - Step 4: Simplify right side
521,108,389.92x = 133,939,622,765,873,392 - Step 5: Solve for x
x = 133,939,622,765,873,392/521,108,389.92 - Step 6: Final answer
x = 257,028,336.82
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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.