Finding the Fourth Proportional to 717,213,685.64, 989,228,035.98 and 475,372,281.29
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Solution
The fourth proportional to 717,213,685.64, 989,228,035.98 and 475,372,281.29 is: 655,664,549.62
Step by Step Solution
- Step 1: Write the proportion equation
717,213,685.64 : 989,228,035.98 = 475,372,281.29 : x - Step 2: Convert to fraction form
717,213,685.64/989,228,035.98 = 475,372,281.29/x - Step 3: Cross multiply
717,213,685.64x = 989,228,035.98 × 475,372,281.29 - Step 4: Simplify right side
717,213,685.64x = 470,251,588,174,892,672 - Step 5: Solve for x
x = 470,251,588,174,892,672/717,213,685.64 - Step 6: Final answer
x = 655,664,549.62
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.