Finding the Fourth Proportional to 399,492,030.10, 599,238,045.15 and 289,802,607.70
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Solution
The fourth proportional to 399,492,030.10, 599,238,045.15 and 289,802,607.70 is: 434,703,911.55
Step by Step Solution
- Step 1: Write the proportion equation
399,492,030.10 : 599,238,045.15 = 289,802,607.70 : x - Step 2: Convert to fraction form
399,492,030.10/599,238,045.15 = 289,802,607.70/x - Step 3: Cross multiply
399,492,030.10x = 599,238,045.15 × 289,802,607.70 - Step 4: Simplify right side
399,492,030.10x = 173,660,748,117,520,320 - Step 5: Solve for x
x = 173,660,748,117,520,320/399,492,030.10 - Step 6: Final answer
x = 434,703,911.55
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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.