Finding the Fourth Proportional to 868,416,102.60, 1,302,624,153.90 and 623,528,089.80
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Solution
The fourth proportional to 868,416,102.60, 1,302,624,153.90 and 623,528,089.80 is: 935,292,134.70
Step by Step Solution
- Step 1: Write the proportion equation
868,416,102.60 : 1,302,624,153.90 = 623,528,089.80 : x - Step 2: Convert to fraction form
868,416,102.60/1,302,624,153.90 = 623,528,089.80/x - Step 3: Cross multiply
868,416,102.60x = 1,302,624,153.90 × 623,528,089.80 - Step 4: Simplify right side
868,416,102.60x = 812,222,750,408,608,256 - Step 5: Solve for x
x = 812,222,750,408,608,256/868,416,102.60 - Step 6: Final answer
x = 935,292,134.70
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Double scale
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Similar ratio
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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.