Finding the Fourth Proportional to 779,408,611.84, 1,075,583,794.84 and 466,142,775.52
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Solution
The fourth proportional to 779,408,611.84, 1,075,583,794.84 and 466,142,775.52 is: 643,276,976.69
Step by Step Solution
- Step 1: Write the proportion equation
779,408,611.84 : 1,075,583,794.84 = 466,142,775.52 : x - Step 2: Convert to fraction form
779,408,611.84/1,075,583,794.84 = 466,142,775.52/x - Step 3: Cross multiply
779,408,611.84x = 1,075,583,794.84 × 466,142,775.52 - Step 4: Simplify right side
779,408,611.84x = 501,375,615,431,051,776 - Step 5: Solve for x
x = 501,375,615,431,051,776/779,408,611.84 - Step 6: Final answer
x = 643,276,976.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.