Finding the Fourth Proportional to 4,236,709,781.70, 6,355,064,672.55 and 1,328,659,964.10
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Solution
The fourth proportional to 4,236,709,781.70, 6,355,064,672.55 and 1,328,659,964.10 is: 1,992,989,946.15
Step by Step Solution
- Step 1: Write the proportion equation
4,236,709,781.70 : 6,355,064,672.55 = 1,328,659,964.10 : x - Step 2: Convert to fraction form
4,236,709,781.70/6,355,064,672.55 = 1,328,659,964.10/x - Step 3: Cross multiply
4,236,709,781.70x = 6,355,064,672.55 × 1,328,659,964.10 - Step 4: Simplify right side
4,236,709,781.70x = 8,443,719,999,683,461,120 - Step 5: Solve for x
x = 8,443,719,999,683,461,120/4,236,709,781.70 - Step 6: Final answer
x = 1,992,989,946.15
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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.