Finding the Fourth Proportional to 460,387,724.47, 690,571,615.84 and 128,385,875.75
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Solution
The fourth proportional to 460,387,724.47, 690,571,615.84 and 128,385,875.75 is: 192,576,033.10
Step by Step Solution
- Step 1: Write the proportion equation
460,387,724.47 : 690,571,615.84 = 128,385,875.75 : x - Step 2: Convert to fraction form
460,387,724.47/690,571,615.84 = 128,385,875.75/x - Step 3: Cross multiply
460,387,724.47x = 690,571,615.84 × 128,385,875.75 - Step 4: Simplify right side
460,387,724.47x = 88,659,641,663,937,152 - Step 5: Solve for x
x = 88,659,641,663,937,152/460,387,724.47 - Step 6: Final answer
x = 192,576,033.10
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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.