Finding the Fourth Proportional to 917,423,994.29, 1,375,572,786.30 and 356,530,901.53
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Solution
The fourth proportional to 917,423,994.29, 1,375,572,786.30 and 356,530,901.53 is: 534,577,478.54
Step by Step Solution
- Step 1: Write the proportion equation
917,423,994.29 : 1,375,572,786.30 = 356,530,901.53 : x - Step 2: Convert to fraction form
917,423,994.29/1,375,572,786.30 = 356,530,901.53/x - Step 3: Cross multiply
917,423,994.29x = 1,375,572,786.30 × 356,530,901.53 - Step 4: Simplify right side
917,423,994.29x = 490,434,205,619,672,960 - Step 5: Solve for x
x = 490,434,205,619,672,960/917,423,994.29 - Step 6: Final answer
x = 534,577,478.54
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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.