Finding the Fourth Proportional to 839,808,830.70, 1,259,713,246.05 and 834,706,997.10
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Solution
The fourth proportional to 839,808,830.70, 1,259,713,246.05 and 834,706,997.10 is: 1,252,060,495.65
Step by Step Solution
- Step 1: Write the proportion equation
839,808,830.70 : 1,259,713,246.05 = 834,706,997.10 : x - Step 2: Convert to fraction form
839,808,830.70/1,259,713,246.05 = 834,706,997.10/x - Step 3: Cross multiply
839,808,830.70x = 1,259,713,246.05 × 834,706,997.10 - Step 4: Simplify right side
839,808,830.70x = 1,051,491,460,817,488,896 - Step 5: Solve for x
x = 1,051,491,460,817,488,896/839,808,830.70 - Step 6: Final answer
x = 1,252,060,495.65
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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.