Finding the Fourth Proportional to 758,291,256.90, 1,137,436,885.35 and 620,541,749.70
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Solution
The fourth proportional to 758,291,256.90, 1,137,436,885.35 and 620,541,749.70 is: 930,812,624.55
Step by Step Solution
- Step 1: Write the proportion equation
758,291,256.90 : 1,137,436,885.35 = 620,541,749.70 : x - Step 2: Convert to fraction form
758,291,256.90/1,137,436,885.35 = 620,541,749.70/x - Step 3: Cross multiply
758,291,256.90x = 1,137,436,885.35 × 620,541,749.70 - Step 4: Simplify right side
758,291,256.90x = 705,827,075,008,407,296 - Step 5: Solve for x
x = 705,827,075,008,407,296/758,291,256.90 - Step 6: Final answer
x = 930,812,624.55
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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.