Finding the Fourth Proportional to 939,709,189.49, 1,408,687,497.75 and 317,489,278.35
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Solution
The fourth proportional to 939,709,189.49, 1,408,687,497.75 and 317,489,278.35 is: 475,937,856.18
Step by Step Solution
- Step 1: Write the proportion equation
939,709,189.49 : 1,408,687,497.75 = 317,489,278.35 : x - Step 2: Convert to fraction form
939,709,189.49/1,408,687,497.75 = 317,489,278.35/x - Step 3: Cross multiply
939,709,189.49x = 1,408,687,497.75 × 317,489,278.35 - Step 4: Simplify right side
939,709,189.49x = 447,243,177,075,249,344 - Step 5: Solve for x
x = 447,243,177,075,249,344/939,709,189.49 - Step 6: Final answer
x = 475,937,856.18
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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.