Finding the Fourth Proportional to 831,967,219.80, 1,247,950,829.70 and 590,102,515.80
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Solution
The fourth proportional to 831,967,219.80, 1,247,950,829.70 and 590,102,515.80 is: 885,153,773.70
Step by Step Solution
- Step 1: Write the proportion equation
831,967,219.80 : 1,247,950,829.70 = 590,102,515.80 : x - Step 2: Convert to fraction form
831,967,219.80/1,247,950,829.70 = 590,102,515.80/x - Step 3: Cross multiply
831,967,219.80x = 1,247,950,829.70 × 590,102,515.80 - Step 4: Simplify right side
831,967,219.80x = 736,418,924,200,667,264 - Step 5: Solve for x
x = 736,418,924,200,667,264/831,967,219.80 - Step 6: Final answer
x = 885,153,773.70
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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.