Finding the Fourth Proportional to 762,500,419.20, 1,143,750,628.80 and 530,048,125.80
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Solution
The fourth proportional to 762,500,419.20, 1,143,750,628.80 and 530,048,125.80 is: 795,072,188.70
Step by Step Solution
- Step 1: Write the proportion equation
762,500,419.20 : 1,143,750,628.80 = 530,048,125.80 : x - Step 2: Convert to fraction form
762,500,419.20/1,143,750,628.80 = 530,048,125.80/x - Step 3: Cross multiply
762,500,419.20x = 1,143,750,628.80 × 530,048,125.80 - Step 4: Simplify right side
762,500,419.20x = 606,242,877,178,011,520 - Step 5: Solve for x
x = 606,242,877,178,011,520/762,500,419.20 - Step 6: Final answer
x = 795,072,188.70
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1.5x scale
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.