Finding the Fourth Proportional to 452,710,368.20, 679,065,552.30 and 435,491,679.80
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Solution
The fourth proportional to 452,710,368.20, 679,065,552.30 and 435,491,679.80 is: 653,237,519.70
Step by Step Solution
- Step 1: Write the proportion equation
452,710,368.20 : 679,065,552.30 = 435,491,679.80 : x - Step 2: Convert to fraction form
452,710,368.20/679,065,552.30 = 435,491,679.80/x - Step 3: Cross multiply
452,710,368.20x = 679,065,552.30 × 435,491,679.80 - Step 4: Simplify right side
452,710,368.20x = 295,727,398,065,441,728 - Step 5: Solve for x
x = 295,727,398,065,441,728/452,710,368.20 - Step 6: Final answer
x = 653,237,519.70
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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.