Finding the Fourth Proportional to 509,306,812.95, 763,960,219.43 and 509,306,812.95
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Solution
The fourth proportional to 509,306,812.95, 763,960,219.43 and 509,306,812.95 is: 763,960,219.43
Step by Step Solution
- Step 1: Write the proportion equation
509,306,812.95 : 763,960,219.43 = 509,306,812.95 : x - Step 2: Convert to fraction form
509,306,812.95/763,960,219.43 = 509,306,812.95/x - Step 3: Cross multiply
509,306,812.95x = 763,960,219.43 × 509,306,812.95 - Step 4: Simplify right side
509,306,812.95x = 389,090,144,575,929,408 - Step 5: Solve for x
x = 389,090,144,575,929,408/509,306,812.95 - Step 6: Final answer
x = 763,960,219.43
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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.