Finding the Fourth Proportional to 847,128,628.48, 1,168,674,877.56 and 529,036,639.96
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Solution
The fourth proportional to 847,128,628.48, 1,168,674,877.56 and 529,036,639.96 is: 729,844,098.81
Step by Step Solution
- Step 1: Write the proportion equation
847,128,628.48 : 1,168,674,877.56 = 529,036,639.96 : x - Step 2: Convert to fraction form
847,128,628.48/1,168,674,877.56 = 529,036,639.96/x - Step 3: Cross multiply
847,128,628.48x = 1,168,674,877.56 × 529,036,639.96 - Step 4: Simplify right side
847,128,628.48x = 618,271,830,430,006,784 - Step 5: Solve for x
x = 618,271,830,430,006,784/847,128,628.48 - Step 6: Final answer
x = 729,844,098.81
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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.