Finding the Fourth Proportional to 8,620,808,225.80, 12,931,212,338.70 and 6,554,565,617.80
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Solution
The fourth proportional to 8,620,808,225.80, 12,931,212,338.70 and 6,554,565,617.80 is: 9,831,848,426.70
Step by Step Solution
- Step 1: Write the proportion equation
8,620,808,225.80 : 12,931,212,338.70 = 6,554,565,617.80 : x - Step 2: Convert to fraction form
8,620,808,225.80/12,931,212,338.70 = 6,554,565,617.80/x - Step 3: Cross multiply
8,620,808,225.80x = 12,931,212,338.70 × 6,554,565,617.80 - Step 4: Simplify right side
8,620,808,225.80x = 84,758,479,791,714,156,544 - Step 5: Solve for x
x = 84,758,479,791,714,156,544/8,620,808,225.80 - Step 6: Final answer
x = 9,831,848,426.70
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Double scale
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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.