Finding the Fourth Proportional to 712,852,578.40, 1,069,129,568.40 and 349,607,624.80
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Solution
The fourth proportional to 712,852,578.40, 1,069,129,568.40 and 349,607,624.80 is: 524,338,215.69
Step by Step Solution
- Step 1: Write the proportion equation
712,852,578.40 : 1,069,129,568.40 = 349,607,624.80 : x - Step 2: Convert to fraction form
712,852,578.40/1,069,129,568.40 = 349,607,624.80/x - Step 3: Cross multiply
712,852,578.40x = 1,069,129,568.40 × 349,607,624.80 - Step 4: Simplify right side
712,852,578.40x = 373,775,849,011,773,120 - Step 5: Solve for x
x = 373,775,849,011,773,120/712,852,578.40 - Step 6: Final answer
x = 524,338,215.69
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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.