Finding the Fourth Proportional to 130,075,830.84, 179,515,998.63 and 71,349,846.12
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Solution
The fourth proportional to 130,075,830.84, 179,515,998.63 and 71,349,846.12 is: 98,469,014.54
Step by Step Solution
- Step 1: Write the proportion equation
130,075,830.84 : 179,515,998.63 = 71,349,846.12 : x - Step 2: Convert to fraction form
130,075,830.84/179,515,998.63 = 71,349,846.12/x - Step 3: Cross multiply
130,075,830.84x = 179,515,998.63 × 71,349,846.12 - Step 4: Simplify right side
130,075,830.84x = 12,808,438,878,328,632 - Step 5: Solve for x
x = 12,808,438,878,328,632/130,075,830.84 - Step 6: Final answer
x = 98,469,014.54
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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.